Ordovician News 2005

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SUBCOMMISSION ON ORDOVICIAN STRATIGRAPHY INTERNATIONAL COMMISSION ON STRATIGRAPHY

Nº 22

2005 ORDOVICIAN NEWS Nº 22

INTERNATIONAL UNION OF GEOLOGIAL SCIENCES

President: ZHANG HONGREN (China) Vice-President: S. HALDORSEN (Norway) Secretary General: P. T. BOBROWSKI (Canada) Treasurer: A. BRAMBATI (Italy) Past-President: E.F.J. DE MULDER (The Netherlands)

INTERNATIONAL COMMISSION ON STRATIGRAPHY

Chairman: F. GRADSTEIN (Norway) Vice-Chairman: S. C. FINNEY (USA) Secretary General: J. OGG (USA) Past-Chairman: J. REMANE (Switzerland)

INTERNATIONAL SUBCOMMISSION ON ORDOVICIAN STRATIGRAPHY

Chairman: CHEN XU (China) Vice-Chairman: J. C. GUTIÉRREZ MARCO (Spain) Secretary: G. L. ALBANESI (Argentina) F. G. ACEÑOLAZA (Argentina) A. V. DRONOV (Russia) O. FATKA (Czech Republic) S. C. FINNEY (USA) R. A. FORTEY (UK) D. A. HARPER (Denmark) W. D. HUFF (USA) LI JUN (China) C. E. MITCHELL (USA) R. S. NICOLL (Australia) G. S. NOWLAN (Canada) A. W. OWEN (UK) F. PARIS (France) I. PERCIVAL (Australia) L. E. POPOV (Russia) M. R. SALTZMAN (USA)

ORDOVICIAN NEWS Nº 22

CONTENTS

Page

NOTE FOR CONTRIBUTORS iii EDITOR'S NOTE iii CHAIRMAN´S AND SECRETARY´S ADDRESSES iii CHAIRMAN´S REPORT 1 SOS ANNUAL REPORT FOR 2001 1 INTERNATIONAL SYMPOSIA AND CONFERENCES 4 PROJECTS 7 SCIENTIFIC REPORTS 7 HONORARY NOTES 8 MISCELLANEA 9 CURRENT RESEARCH 9 RECENT ORDOVICIAN PUBLICATIONS 25 NAMES AND ADDRESS CHANGES 40

URL: http://www.ordovician.cn, http://seis.natsci.csulb.edu/ISOS

Cover: The Wangjiawan GSSP for the base of the Hirnantian Stage, China.

ORDOVICIAN NEWS Nº 22

NOTE FOR CONTRIBUTORS

The continued health and survival of Ordovician News depends on YOU to send in items of Ordovician interest such as lists and reviews of recent publications, brief summaries of current research, notices of relevant local, national and international meetings, etc. As more geological software becomes available, details of this would also be welcomed by many of us. Also please ensure the SOS´s Secretary (responsible editor) is notified of any changes in address, telephone or fax number and e-mail address.

EDITOR'S NOTE

Welcome to the new issue of Ordovician News in hard and soft versions, the seventh one since I am serving as editor. Current number (22, 2005) is assembled as webpage for easier downloading of required information from the page of contents. We are still mailing a few hard copies; in particular, for those Ordovician friends who are not able to get into the network. Our previous electronic distributions were very successful, particularly by dramatically diminishing costs of printing and postage, as well as by allowing us to have the newsletter in the personal computer for permanent and easy access. In case members of the Ordovician community have any comment on this issue, the secretary would be pleased to hear from them. I would like to thank all of you for the many contributions for the current number. Several important international meetings and field trips, particularly related to Ordovician stratigraphy and paleontology, are included. Recent advances on proposed stratotypes, and names for the global Ordovician subdivisions, are documented. Also you will find information on several new international projects, scientific reports and honorary notes. Present number incorporates the renewed list of titular members, after seven members of the SOS retired in August at 32º IGC, Florence, Italy. Finally, as always, your personal contributions on current research, publications, and updated addresses, are herein published. I am particularly grateful for the technical support provided by Fan Juanxuan (Nanjing Institute of Geology and Palaeontology, China), who uploaded current issue of Ordovician News in its internet web site. I appreciate very much your confidence in my service to the secretariat of the Subcommission.

GUILLERMO L. ALBANESI

CHAIRMAN'S AND SECRETARY'S ADDRESSES

CHEN XU GUILLERMO L. ALBANESI Nanjing Institute of Geology and Paleontology CONICET – Museo de Paleontología Academia Sinica Universidad Nacional de Córdoba 39 East Beijing Road, Nanjing C. C. 1598, 5000 Córdoba CHINA ARGENTINA Tel.-Fax: 86-25-83375157 (Office) Tel: 54-351-4332098, int. 56 / 4719575 Tel.-Fax: 86-25-57713239 (home) Fax: 54-351-4216350 E-mail: [email protected] E-mail: 1) [email protected] 2) [email protected]

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ORDOVICIAN NEWS Nº 22

The Ordovician Subcommission is one of the CHAIRMAN´S REPORT most active Subcommission with the International From the 32nd International Geological Commission on Stratigraphy. I sincerely hope that all Congress held in Florence in August of 2004, Juan voting and corresponding members as well as the Carlos, Guillermo and I took the opportunity to be the Ordovician friends will work together in the coming new executive officers of the Ordovician years. Subcommission. We have had the first two business meetings in Florence and Erlangen with most of the CHEN XU retired voting members and new voting members. We have discussed the principal and new directions of the Subcommission in the coming four years following SOS ANNUAL REPORT FOR 2004 the guidance of the International Commission on Stratigraphy. 1. Name of constituent body: In the coming four years, the Subcommission Subcommission on Ordovician Stratigraphy (SOS) will complete the last three GSSPs, the base of the Hirnantian Stage, the base of the second Stage of the 2. Overall objectives, and Fit within IUGS science Upper Ordovician, and the base of the Middle policy: Ordovician. As you know, the Hirnantian Stage has The Subcommission promotes international been voted and passed by the voting members of the cooperation in Ordovician Stratigraphy. Specific Subcommission. A final report is preparing and will objectives are: submit to the ICS. The voting members voted the a. To delimit and subdivide the Ordovician System second Stage of the Upper Ordovician very recently (and Period) as a part of the overall ICS mission to with a majority favor to the BKR section in elaborate the standard global stratigraphic scale. This Oklahoma. Further studies on the base of the Middle work aims to establish the boundaries (GSSPs), the Ordovician were provided by Stouge and his correlation of the subdivisions (Stages and Series), colleagues for the Huanghuachang section, and Sweet and the nomenclature of the subdivisions. and Albanesi for the Niquivil section, which have b. To promote regular international meetings on been posted on the Subcommission website for further aspects of Ordovician geology, especially those discussion. I have received a report from Albanesi that devoted to clarifying stratigraphic procedures, a new contribution will be posted on the nomenclature and methods for use in establishing a Subcommission website soon. I am pleased to see unified global time scale, and to prepare correlation these contributions by colleagues from different charts with explanatory notes (this latter task is now countries working on the base of the Middle completed). Ordovician and provide fruitful contributions to this c. To encourage, promote, and support research on all boundary. It would be greatly appreciated if the voting aspects of Ordovician geology worldwide and to members and corresponding members supported the provide outlets, Ordovician News, international Subcommission and completed the voting stages meetings, and a web page, for promoting discussions within this year in the schedule that we proposed. and reporting results of this research. After the three GSSPs completed, the d. To encourage, promote, and support Subcommisssion may concentrate on the Stage unit interdisciplinary research on the Ordovician global stratotype and named all the stages. It is also a big job Earth system, addressing topics that require high- with a high-resolution correlation of the Stage units resolution, global correlation. internationally. So far, only three stages have formal The ultimate goal of the Subcommission is to names, the Tremadocian, Darriwilian, and Hirnantian. provide a high-resolution geological time scale that The Subcommission would like to edit and publish an will be a critical foundation for interdisciplinary Ordovician Time Table after all stages and unit names research on the global Earth system during the erected. Ordovician Period. The work is broad based and As I reported in Florence and Erlangen, the must include specialists in paleontology, all Subcommission would like to support the important subdisciplines of stratigraphy (bio-, litho-, chemo-, research projects on Ordovician Earth System and magneto-), sedimentology, geochemistry, and organized by Stan Finney and the IGCP project 503 on tectonics. With active participants from more than 25 the Ordovician Palaeogeography and Palaeoclimate countries, the Subcommission involves much of the organized by Thomas Servais and his colleagues. The global geological community. research of these two projects is coincided with a new direction proposed by ICS. Finally, the Subcommission would like to 3. Summary table of Ordovician subdivisions support the Ordovician-Silurian International

Conference 2007 in China. A working group begins to prepare the conference in Nanjing, China.

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carried out. It will include activities stimulated by the GOES project of the Subcommission.

6. Chief accomplishments and products in 2004 a. GSSP proposals were submitted for the three boundaries remaining to be defined: the base of the Middle Ordovician Series and its lower stage (the 4th Stage, yet to be named); the base of the base of the middle stage of the Upper Ordovician Series (the 6th Stage, yet to be named), and the base of the Hirnantian Stage, the uppermost stage of the Upper Ordovician Series. In addition, Subcommission Chair Stan Finney and long-time Subcommission member Stig Bergstrom visited China in March 2004 in order to inspect the Huanghuachang and Wangjiawan sections, which were proposed as global stratotype sections, respectively, for the base of the Middle Ordovician Series and the base of the Hirnantian Stage. Two GSSP proposals were submitted for the base of the Middle Ordovician Series: the level of the FAD of the conodont B.? triangularis in the Huanghuachang section in China, and the level of the FAD of the conodont C. aranda in the Niquivil section in Argentina. A GSSP proposal was submitted for the Black Knob Ridge 4. Organization: section in Oklahoma, USA for the base of the middle a. Subcommission Executive stage of the Upper Ordovician Series that is to be Chairman, Chen Xu (P.R.China) defined at the level of the FAD of the graptolite D. Vice Chairman Juan Carlos Gutiérrez-Marco caudatus. British colleagues indicated that they Secretary, G.L. Albanesi (Argentina) would submit a proposal with the Hartfell Spa 16 other Voting Members section, Scotland as the global stratotype for this 94 Corresponding Members boundary. Finally, a single GSSP proposal was Subcommission website: www.ordovician.cn submitted for the base of the Hirnantian Stage: the http://seis.natsci.csulb.edu/ISOS (remains level of the FAD of the graptolite N. extraordinarius active for facilitating discussion of GSSP proposals). in the section at Wangjiawan, China. b. GOES Program b. A discussion page on the Subcommission’s Secretary, W.B.N. Berry (U.S.A.) website was further developed to allow for wide Research committee, C.R. Barnes, S.M. Bergström, dissemination of the GSSP proposals and for S.C. Finney, and R.A. Astini extensive discussion of them. c. In August 2004, the vote on the 5. Interfaces with other international projects Wangjiawan GSSP for the base of the Hirnantian IGCP Project 410: The Great Ordovician Stage was completed, and the GSSP was approved Biodiversification Event. Project nearly completion unanimously. with final meeting held in conjunction with the first d. Deadlines were set for the submission of International Palaeontological Congress, Sydney, additional proposals for the base of the middle stage Australia in July 2002 and with completion of book of the Upper Ordovician Series and for further work entitled "The Great Ordovician Biodiversification on and revisions to the GSSP proposals submitted for Event" that is in press with Columbia University the base of the Middle Ordovician Series, with the Press. goal of completing voting on them by mid 2005. IGCP Project Proposal: Impact of channging e. The Subcommission sponsored the symposium session “Global Ordovician Earth palaeogeography and palaeoclimate on major biotic nd changes through the Ordovician. Proposers are System” at the 32 International Geological Congress in Florence, Italy in August 2005. corresponding and nominated voting members of nd Ordovician Subcommission. This is a successor to f. Also at the 32 IGC, a meeting of IGCP 410 and will support substantial research on Subcommission voting members was held to focus on Ordovician strata and fossils, including travel to progress in selection of GSSPs. The new executive meetings at which Subcommission business will be committee took office; the terms of several long-term members of the Subcommission ended, and several new Subcommission members began their terms.

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Both a business meeting (voting members) and an e. Selection of names for 2nd, 3th, 5th and 6th open meeting (all participants) were held in Erlangen. stages of the Ordovician System. New directions of the Subcommission and three f. Production and internet distribution of remaining GSSPs were discussed. The proposals of Ordovician News No. 22 in May 2005. the second stage of the Upper Ordovician and the base of the Middle Ordovician will be voted within 2005. 10. Budget and ics component for 2005 g. Ordovician News No. 21 was produced and Ordovician News No. 22 production costs: $ 250. posted on the Subcommission web site in May 2004. Support for secretarial office: $ 250. Travel subsidies for executive members to attend 7. Chief problems encountered in 2003 GSSP dedication ceremonies: $1500. Most subcommission members requested that Plaques for GSSPs to be dedicated in 2005: $ 500. additional study and evaluation be given to the GSSPs Contingency for inspection of Hartfell Spa section, if for the base of the Middle Ordovician Series before proposed as global stratotype: $1000. proceeding to a formal ballot Carryover from 2004 : - $150. As always, the lack of travel support limits TOTAL 2005 BUDGET REQUEST: $3,350 (through Mar, the participation of Voting Members in field meetings 2006). to evaluate potential stratotype sections. Although the Potential funding sources outside IUGS Subcommission supports investigations of potential Already in its first year, IGCP Project 503, GSSPs, the amount available is so limited that most of Ordovician Palaeogeography and Palaeoclimate, these investigations must be supported by other funded a successful meeting in Erlangen, Germany in sources. early September 2004. This project will provide travel support to a significant number of Ordovician 8. Summary of expenditures in 2004 (anticipated specialists, including voting members of the through march 2005) Subcommission, allowing for regular meetings at the Contribution to Chair’s travel expenses: $ 200. annual workshops scheduled for the project. Chair’s expenses to host Digby McLaren at IGC and The State Key Laboratory of Stratigraphy and to Produce certificates for ICS Prizes: $ 50. Palaeobiology, Nanjing Institute of Geology and Contribution to Secretary’s travel expenses: $ 500. Palaeontology, Chinese of Academia of Sciences Support for website, secretariat, and production of supports for the new Subcommission website. The newsletter: $ 500. Subcommission officers are also supported by their Support for additional conodont work to improve research project for parts of their activities. Niquivil GSSP Proposal: $ 300. Anticipated contribution to travel expenses of working 11. Review chief accomplishments over last five group (Finney, Bergstrom, and Goldman) that will years (2000-2004) finalize issues related to accessibility and preservation a. Approval, ratification, and dedication of the of the Black Knob Ridge GSSP in December 2004: $ Green Point GSSP for the base of the Ordovician 800. System. Anticipated Carryover: $ 150. b. Approval, ratification, and dedication of the TOTAL: $2500 Diabasbrottet and Fågelsång GSSPs for the bases of the upper stage of the Lower Ordovician Series and 9. Work plan, critical milestones, anticipated the Upper Ordovician Series, respectively. results and communications to be achieved next c. Significant progress on definition of series and year stages for the Ordovician System with only tow a. Development of new website based at GSSPs remaining to be selected and approved by the Nanjing Institute of Geology and Palaeontology to Subcommission, following change in strategy for support new executive of Subcommission. stages of Upper Ordovician Series in August 2003. b. Submission of Wangjiawan GSSP proposal d. With publication in 2000 of A Revised for base of Hirnantian Stage to ICS for approval. Correlation of Ordovician Rocks in the British Isles, c. Discussion and evaluation of Black Knob correlation charts have been completed for Ridge GSSP proposal for base of middle stage of Ordovician rocks on all continents. Upper Ordovician Series and Hartfell Spa GSSP e. International Symposium on the Ordovician proposal, if it is submitted by December 2004 System in San Juan, Argentina, in August 2003, in deadline. Ballot on GSSPs in early 2005 and conjunction with the 7th International Graptolite submission of approved GSSP proposal to ICS. Conference and a Field Meeting of the d. Revisions of Huanghuachang and Niquivil Subcommission on Silurian Stratigraphy and GSSPs for base of Middle Ordovician Series, publication of 556 page proceedings, 130 participants discussion, and ballot on proposals in mid 2005. represented 18 countries, 124 papers were presented Submission of approved GSSP to ICS in second half in technical sessions. of 2005.

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e. Publication of Ordovician News nos. 17-21 and Northeastern GSA (March 14-15; Saratoga Springs, their posting on the Subcommission’s web site. New York) two symposia dealing with Ordovician f. Development of the web site “Ordovician issues. Stratigraphy Discussion Group” to facilitate Late Ordovician Taconic Orogenesis: Structural discussions on selection of the GSSPs. This site has Evolution and Foreland Basin History chaired by evolved into the Subcommission's web site and also Gordon Baird (SUNY Fredonia), Jean Crespi includes postings of Ordovician News. (University of Connecticut), Art Goldstein (Colgate g. Sponsorship of a technical session and field University), and Charles Mitchell (SUNY Buffalo). excursion on the GSSP for the base of the Middle and Ordovician Series at the Annual Meeting of the Sequence Stratigraphic Approaches to Paleobiologic Geological Society of America in November 2000. and Sedimentologic Investigations of Lower h. Sponsorship at the 31st International Paleozoic Strata of the Northern Appalachians Geological Congress of the symposium chaired by Alex Bartholomew (University of “Paleontological, stratigraphical, and Cincinnati) and Sean Cornell (Juniata College). paleogeographical relations among South America, Sean Cornell will also lead an associated pre-meeting Laurentia, Avalonia, and Baltica during the fieldtrip on Sunday March 13 on the stratigraphy of Ordovician.” the Middle and Upper Ordovician Black River and i. Sponsorship at the 32nd International Geological Trenton Groups in the Mohawk and Black River congress of the symposium "The global Ordovician Valleys. Earth system." More information at: http://www.geosociety.org/ j. Launched GOES (Global Ordovician Earth sectdiv/northe/05nemtg.htm System) Program to stimulate integrated multi- disciplinary studies of global events (mass extinction, Northcentral GSA Sectional Meeting (May 19-20; sea-level changes, greenhouse conditions, tectonics) Minneapolis, Minnesota) does not have any during the Ordovician Period. scheduled sessions dealing directly with Ordovician k. Sponsorship of special symposium on the issues; however there will be two fieldtrips: Ordovician System at the Geological Society of Late Ordovician Stratigraphy and Paleontology of the America Annual Meeting in 2000, of WOGOGOB Twin Cities Basin (Wednesday May 18) leaders: 2001 in Copenhagen, and of the meeting and field Robert Sloan (University of Minnesota), Mike excursion “The Gondwanan Platform in Ordovician Middleton (University of Wisconsin–River Falls) and times: Climatic, eustatic and geodynamic evolution”, Gerry Webers (Macalester College) in Morocco in February 2001. Late Ordovician Lithology and Biostratigraphy of the Southern Margin of the Twin Cities Basin (Saturday 12. Objectives and work plan for next 5 years May 21) leaders: Robert Sloan (University of (2004-2009) Minnesota), Mike Middleton (University of Selection of GSSP for base of Middle Ordovician Wisconsin–River Falls) and Gerry Webers Series. (Macalester College) Selection of GSSP for base of middle stage of Upper More information at: http://www.geosociety.org/ Ordovician Series (6th stage of Ordovician System) sectdiv/Northc/05ncmtg.htm#ft Selection of names for 2nd, 3rd, 5th and 6th stages of Ordovician System IGCP Project 503--Ordovician Palaeogeography Publication of papers presented at "The global and Palaeoclimate (June 15-18; Milwaukee, Ordovician Earth system" symposium at the 32nd IGC. Wisconsin) The second annual IGCP 503 meeting With completion of selection of GSSPs for all stages, will feature three days of oral and poster presentations refocusing of Subcommission to address the global at the Milwaukee Public Museum focusing on Ordovician Earth system. evolutionary paleoecology and climatology during the Development of a new website with transfer of Ordovician and Silurian, though workers from all subcommission executive to new chair. fields of geology are encouraged to contribute papers 10th International Symposium on the Ordovician in their area of specialization. System to be held in Nanjing, China in summer 2007. In addition to the oral and poster sessions, Carlton Brett, Steve Holland, and Patrick McLaughlin will CHEN XU lead a pre-meeting fieldtrip June 11-14 to Upper Ordovician exposures of the Cincinnati region and Toni Simo will lead a mid-meeting field trip (June INTERNATIONAL SYMPOSIA, 16) to the Upper Ordovician of east central CONFERENCES AND FIELD MEETINGS Wisconsin. More Information at: http://www.mpm.edu/igcp503 2005 GSA MEETINGS AND ASSOCIATED FIELDTRIPS

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SYMPOSIUM: “JAWS! FALSE TEETH AND GUMS - conformable contacts in slope and rise successions in WHAT MAKES A VERTEBRATE A VERTEBRATE” the Taconic overthrust belt.

From 19 to 26 June 2005 at the NAPC in ED LANDING Halifax, Nova Scotia, Sue Turner is organizing a symposium on the topic "Jaws! False teeth and Gums - what makes a vertebrate a vertebrate", which WOGOGOB welcomes any Ordovician specialist who has interest in the vertebrate phylogeny debate (see details on The Eight Meeting of the Working Group on the NAPC website http://www.ucmp.berkeley.edu/ Ordovician Geology of Baltoscandia was taken place napc/2005/index.html; and on David B. Scott's in Estonia, in May 13-18. The meeting was organised webpage http://www.dal.ca/~es/napc/napc.htm). by the Institute of Geology, Tartu University, by th Institute of Geology at Tallinn University of Tehcnology (earlier name in English -Tallinn “GEOLOGY OF REEFS” Technical University) and Geological Survey of Estonia. Altogether more than 60 people attended the 4-6 July at Syktyvkar will be held the meeting and some 40 talks were given on two-days International Symposium “Geology of reefs”, with a scientific session in the Tartu University Library. field trip to the Subpolar Urals, where Ordovician reef During the pre- and post-conference geological will be shown. excursion 12 geological objects, mainly quarries, were visited. Abstracts of the talks and the ANNA ANTOSHKINA descriptions of the geological sections visited can be fined by the address http://www.gi.ee/WOGOGOB/ By the same address you can find photos with the “V. V. LAMANSKY SESSION AND FIELD TRIP” geological sections and friends of Ordovician in Estonia. In the year 2005 there will be 100 years since V.V. Lamansky monograph “Die ältesten silurischen LINDA HINTS Schichten Russlands (Etage8). Mémoires Comité Géologique. Nouvelle Série, Livr. 20, 1-223. St.Petersburg” was published. The monograph made ANNOUNCING THE FALL 2005 GREAT LAKES an epoch in the study of East Baltic Ordovician. To SECTION SEPM (GLS-SEPM) FIELD CONFERENCE: commemorate this event a special session dedicated to V.V. Lamansky will be organized during the 6th Baltic Facets of the Ordovician Geology of the Upper StratigraphicConference in St. Petersburg, August 22- Mississippi Valley Region Dates: September 23-25, 25, 2005. After the Conference a special 7 days field 2005 Co-Leaders: Greg Ludvigson and Brian Witzke trip along the Russian and Estonian parts of the Baltic- (Iowa Geological Survey and University of Iowa), Ladoga Klint will be organized (August 26 – Norlene Emerson (University of Wisconsin- September 1, 2005). During the field trip all the main Richland), and Jeff Dorale (University of Iowa) outcrops studied by V.V. Lamansky will be Conference Headquarters: demonstrated and recent advances in stratigraphy, The Oaks Steakhouse 1101 Hwy 9 W, Decorah, IA. sedimentary environments and sea-level changes Planning for the fall 2005 GLS-SEPM Field interpretations in the Varangu-Kunda stratigraphic Conference on Ordovician geology of the Upper interval will be discussed. Mississippi Valley is well underway. The event will be headquartered in Decorah, Iowa, where we will be ANDREI DRONOV AND TÕNU MEIDLA anchored by a small geoscience community centered around Luther College. We will visit a handful of well-exposed sections that display details of the CAMBRIAN SUBCOMMISSION Ordovician stratigraphic record, along with stops illustrating some salient features of the local karst I am beginning to organize the 2006 meeting of hydrology and records of Quaternary the Cambrian Subcommission. “Albany 2006,” is paleoclimatology extracted from spelean carbonates. planned for early August 2006. The accompanying The field conference guidebook will contain a field trip, while emphasizing Cambrian stratigraphy, collection of short research papers by a community of will include unconformable terminal Cambrian–lowest scientists who have been actively researching various Ordovician contacts in autochthonous and facets of the Ordovician geology of the Upper parautochthonous platform successions on the east Mississippi Valley region in recent years. This will New York Promontory in New York and Vermont and include exciting information on the newly-emerging record of Ordovician global change.

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For current information on this upcoming from June 15 to 18, 2005. We will convene at the event, visit the GLS-SEPM website at: Milwaukee Public Museum in Milwaukee, http://www.isgs.uiuc.edu/ gls-sepm/#TOP Wisconsin. A premeeting field trip will be held in the Cincinnati region from June 11 to 14. GREG LUDVIGSON http://www.mpm.edu/igcp503 IGCP503 is a followup to IGCP410 (The Great Ordovician Biodiversification Event). The PALAEOZOIC ECOSYSTEMS EVOLUTION AND ITS project will develop a better understanding of the RELEVANCE TO GEOGRAPHIC AND CLIMATIC environmental changes that influenced the CHANGES biodiversity trends in the Ordovician and Early Silurian. The major objective is to find the possible The Palaeontological Institute plans to hold in physical Moscow this international symposium in August, and/or chemical causes (e.g., related to changes in 2006. The symposium will be organized in the climate, sea level, volcanism, plate movements, framework of the IGCP project 503 and Russian extraterrestrial influences, etc.) of the Ordovician Academy of Sciences program #25 “Biosphere Origin biodiversification, the end-Ordovician extinction, and and Evolution”. The attention of the participants of the Silurian radiation. Further information at: the IGCP# 491 and 499 project (Devonian land-seas http://www.pal.uni-erlangen.de/IGCP503 interaction) will be also attracted. The Milwaukee meeting is the second of this The symposium will make possible consider project, following a successful initial meeting held in various problems of the development of the Erlangen in September last year. The theme of the Palaeozoic terrestrial and marine ecosystems and meeting will be evolutionary paleoecology and communities during Palaeozoic. climatology during the Ordovician and Silurian, but The Post-conference international excursion to workers from all fields of geology during this time the Ordovician section of the Siberian platform will be interval are encouraged to contribute papers in their organized by the Institute of Petroleum Geology of area of specialization. the Siberian Branch of the Russian Academy of The Cincinnati region field trip (June 11-14) Sciences (Dr. A. Kanygin). The participants will visit will explore classic exposures of Middle and Upper the best sections of the Siberian platform Ordovician: Ordovician rocks. Space is limited so we encourage The Kulumbe River, the tributary of the Khantayka early registration. River (now Khantai water reserve) A one day mid-meeting field trip will examine The deposits of the Middle and Upper Ordovician exposures in eastern Wisconsin. Abstracts Cambrian, Ordovician, Silurian and Devonian occur in and registration are due by April 30. Please see the practically uninterrupted section at the Kulumbe Milwaukee meeting web site at: River. All facies are carbonate. The Ordovician part of http://www.mpm.edu/igcp503 the section is about 6 km long. The fauna is rich and PLEASE NOTE: International visitors requiring diverse. Bed-by-bed section description and major visas to enter the USA are groups of fauna including Chitinozoa and Acritarcha encouraged to apply for the visas as early as possible. may be found in the volume "The Ordovician of the Scheduled meetings of IGCP 503: September Siberian platform. Key section on the Kulumbe 2004, official opening meeting at Erlangen, Germany: River." (Academy of Sci. of the USSR, Siberian ocean and climate modelling, and the development of Branch, Institute of Geology and Geophysics. stable C- and O-isotopes; field meeting S-Sweden Transactions, vol. 506. Moscow, Nauka, 1982. 224 (Fgelsng, land, Gotland); proceedings volume pdf p.). It is possible to visit this section by helicopter files are at: http://www.pal.uni from the town of Igarka. Optimal time for the erlangen.de/IGCP503/page/proceedings.html 2005, excursion is August, 10-20 (good weather and absence meeting at Milwaukee, Wisconsin, USA: of mosquitoes). evolutionary palaeoecology, onshore-offshore transects (http//www.mpm.edu/igcp503). 2006, SERGEI V. ROHZNOV meeting at Glasgow, Scotland, UK: changing palaeogeographical and palaeobiogeographical patterns. 2007, 10th International Symposium of the ANNOUNCEMENT OF MILWAUKEE MEETING OF Ordovician System at Nanjing: geological events and IGCP 503 (JUNE 15-18, 2005) AND ASSOCIATED the stratigraphical framework. 2008, closing meeting FIELD TRIP IN THE CINCINNATI REGION (JUNE 11- at Lille, France: reconstruction of sea-level 14). fluctuations and final synthesis. Thanks very much,

We cordially invite you to join the Second PETER SHEEHAN International Symposium of IGCProject 503 "Ordovician Palaeogeography and Palaeoclimate")

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factor of the evolutionary strategy in biota PROJECTS associations owing to the gradual stabilization of the abiotic indices in sea basins. CORRELATION OF THE PALAEOZOIC TERRANES IN New edificator groups first appeared in abundance BULGARIA AND NW TURKEY: IMPLICATIONS FOR in the Ordovician and reached their acme in the THE TECTONIC-PALAEOGEOGRAPHIC EVOLUTION OF Middle Ordovician: articulate brachiopods and sessile NW GONDWANA colonial (tabulates, tetracorals, heliolitoids, and stromatoporoids), aggregated (crinoids), and colonial- A 2003-2004 project between TUBITAK and aggregated (bryozoans) filter-feeding organisms with Bulgarian Academy of Science with leaders: Prof. Dr. carcass skeletons. This resulted in a breakdown of M. Cemal Goncuoglu (Middle East Technical biotopes and complication and heterogeneity of food University, Department of Geological Engineering) webs. The lowest trophic level was dominated by and Prof. Dr. Slavcho Yanev (Bulgarian Academy of ostracodes, first small hydrobiontic universal eaters Sciences, Geological Institute). simultaneously belonging to several trophic levels and capable of a deeper transformation of organic VALERI SACHANSKI matter. In the Ordovician, the pelagic zone became a constant rather than a facultative, as before, habitat for zooplanktonic and nektonic organisms: graplolites, radiolarians, conodontoforids, nautiloids, SCIENTIFIC REPORTS meroplankton (mainly larvae of colonial organisms and brachiopods), pelagic trilobites, ostracodes, and THE ORDOVICIAN PHENOMENON OF EXPLOSIVE early primitive fishes. In the Ordovician, a spatial DIVERGENCE OF THE EARTH'S ORGANIC REALM: rearrangement of the lowest trophic level — major CAUSES AND EFFECTS ON THE BIOSPHERE producers — took place. This had a dramatic effect EVOLUTION on the stage and lateral structure of trophic chains. Until the early Middle Ordovician, bottom The evolution of biosphere could be presented as cyanobacterial associations, or meadows, were the following processes: (1) emergence of new widespread in Late Precambrian and Early Paleozoic ecologically specialized groups (guilds), providing a epicontinental seas and were main photosynthesizing more efficient use, transfer, and transformation of producers. At the Early-Middle Ordovician boundary, matter and energy in ecosystems; (2) spatial expansion the areas of these meadows decreased, and of life throughout the Earth (gradual transition of the phytoplankton, became the main producer. The global biosphere from discrete to continual on exploration of ecologic event was accompanied by the greatest (in new bionomic zones and biotopes; (3) complication of the Phanerozoic) burst of the diversity of Ordovician the trophic structure of ecosystems (from simple marine biotas followed by rapid stabilization. Later Archean autotrophic-heterotrophic procaryotic the stability was maintained by a phylogenetic systems to the modern global ecosystem); (4) succession of ecologically equivalent taxa variations in the spatial and energetic indices of supplemented by replacement of some ecologic guilds biogeochemical cycles. In this context, the Ordovician at critical borderlines. can be regarded as one of the greatest critical stages in Thus, in the Ordovician, marine ecosystems the biosphere evolution. In the Ordovician, the became multistage, their trophic structure became emergence of new taxa (ecologic guilds) with better more complex, and a global closed biogeochemical trophic adaptability in benthic associations and cycle formed for the first time throughout the sea settling of pelagic zones in euphotic sea areas resulted area. The Ordovician global, biotic events matched in dramatic changes in marine ecosystems, which large-scale geologic events (abrupt climatic changes, predetermined further evolution of marine biotas. The maximum range of transgressions and regressions of chief evolutionary strategy of Precambrian marine epicontinenlal seas, changes in Mg and Ca balance in organisms was to improve adaptation to marine sediments, increase in the content of oxygen physicochemical environmental settings by in the Earth's atmosphere and hydrosphere, and complication of biological organization and separation formation of the ozone screen). It is supposed that the of metabolic and reproductive functions within a appearance of the ozone screen and increase in the body. In the Early Cambrian, main phyla of marine content of oxygen in sea water had a determining invertebrates emerged, and multistage trophic impact on the settling of the pelagic zone by relationships between autotrophs and heterotrophs, heterotrophs and formation of coherent (ecologically with division of ecologic functions, began to form. complete) benthic ecosystems. At the initial Adaptation to the biotic environment became as metastable stage of development of the ozone screen, evolutionarily important as adaptation to abiotic dramatic fluctuations of biodiversity in bottom and conditions. Starling in the Ordovician, the ecologic pelagic associations were determined by profound mechanisms of organism interaction became the key changes in spatial parameters of sea shelves, the main

7 ORDOVICIAN NEWS Nº 22 habitat of life, which were caused by eustatic "Rube wasn't a theorist," Johnson said. "What he said fluctuations of the World Ocean level. The Late was based on the facts of the Earth. When he said Ordovician extinction of marine biotas resulted from something it was based on a huge well of data. He an abrupt shrinkage of the shelf habitat caused by a was someone who contributed a lot to the factual lowering of the World Ocean, which, in turn, resulted understanding of how we know how the world from the fixation of great volumes of water in works." continental glaciers after the Ordovician transgression But it wasn't just his scholarship that set Mr. maximum. Ross apart. To Johnson, his friend and mentor was a "character," a man with a "quick temper" who "never A. V. KANYGIN pulled his punches." "He had a real strong personality, always cursing and storming around and making his opinions well-

known. He was always complaining about HONORARY NOTES something," said Johnson, laughing as he added,

"Rube was a guy with a heart of gold, but it was REUBEN ROSS, A 'GARRULOUS PERFECTIONIST' covered with a really nice crusty surface." No one laughed louder, cursed and grumbled Nobody knew the surface - or the bubbly core - better with more gusto, built sailboats better, endeared than family. himself so thoroughly to so many, or knew more about "He was a man of superlatives, of extremes," said the Ordovician Period than Reuben J. Ross. Alison Hess, one of Mr. Ross' four children, at the Which is why his death March 29 at the age of 86 was funeral this month. both the end of a life and a phenomenon. "He loved to laugh," said Hess, who recalled her father as someone who "delightedly would play tennis A paleontologist of international renown, Mr. Ross was "a garrulous perfectionist, to whom nothing with me, taught us to sail, and never turned down a is more important than accuracy and clarity of thought game of Parcheesi." His other trademarks? and expression . . . a dogged, combative, imaginative and inordinately kind person." "He loved single malt Scotch whiskey. He loved the At least that's how professor Noel P. James, a stories of Rudyard Kip-ling and would read them to us when we were sick. He loved traditions; for friend and colleague, described him on the occasion of Mr. Ross winning the Raymond C. Moore Medal for instance, every Christmas Eve he would read Dickens' Excellence in Paleontology. A Christmas Carol," Hess said. The award was largely a paean to Mr. Ross' She also noted how her father was a "prolific builder mastery of the Ordovician Period, the time between of sailboats" and how he reveled in sailing them on Bowles Lake in Jefferson County. 488 million and 444 million years ago when there was no life on land and western North America was Born in New York City of New England covered by shallow seas that would eventually recede parents, Mr. Ross was educated at Princeton and Yale. After he returned from military duty in World and lay bare the Great Basin, which stretches across Nevada and western Utah. War II, he joined the faculty of Wesleyan University "Rube knew the Great Basin like the back of before moving to Colorado to work for the U.S. Geological Survey. his hand - and he knew more than anyone else in the world about what went on in the world at that time; he In 1989, Mr. Ross suffered a heart attack and was a font of information about the rocks and fossils underwent successful bypass surgery. Undaunted, he persevered. Four years later, when his wife, Elizabeth of the Ordovician Period," said Kirk Johnson, the chief curator of the Department of Earth Sciences at Fabian Ross - who was known affectionately as "Jill" the Denver Museum of Nature and Science, where Mr. - died, Mr. Ross grieved, then moved on, eventually Ross served as a research associate for 15 years. finding happiness with Ruth Grier. It was his love of the outdoors that initially led Mr. By 1996, his health began to plummet. He Ross to the field of geology, and it was what kept him suffered the first of what would be a series of small strokes. Although, Hess said, "he had a sharp mind going well into his senior citizen years. In 1992, when he was 74, he and Johnson went long after the rest of his body had begun to fail," his on an expedition to collect fossils in the Great Basin. physical health continued in a downward spiral. While the official cause of death was listed as heart Despite the intense heat of the Nevada summer, Johnson remembered how "Rube would be storming disease, his family knew the real cause. "My father to the top of the mountains ahead of everybody. He died of old age," Hess said. "His body basically gave was like a mountain goat, just really vigorous." out." But it wasn't just the exhilaration of being For those wishing to honor his memory, the outside that lay behind Mr. Ross' devotion to fossils. family requests that contributions be made to the Denver Museum of Nature and Science, Paleontology Department. In addition to Grier, Mr. Ross is

8 ORDOVICIAN NEWS Nº 22 survived by one son, Jamie Ross; three daughters, similar items) from the Soom has been submitted Betsy Wahlberg, Deedee Ross and Alison (Richard) (with Sarah Gabbott, Lucy Siveter and Hannes Hess; and six grandchildren. Theron), and a manuscript on a naked agnathan No doubt all would agree with Johnson who, progresses. I expect to develop work on new with a laugh, called his friend, "A real gem, clearly a conodont apparatuses from the Soom Shale over the gem in the rough, but a real gem nevertheless." next few months. I have also re-invigorated a study After a pause, Johnson added, "It will take geologic with Paul Smith of conodonts from a sample collected time for me to process his passing." by Richard Fortey from the Hanadir Shale of Saudi Perhaps almost as long as the Ordovician Period. Arabia. ANTOSHKINA, ANNA (Russia). I am working on the JAMES B. MEADOW, ROCKY MOUNTAIN NEWS palaecology, sedimentology and palaeogeography of APRIL 14, 2005 the Palaeozoic reefs of the Urals and on the problem [email protected] of the Ordovocial Silurian boundary of the Timan- northern Ural region. ARMSTRONG, HOWARD A. (U.K.). I´m actively MISCELLANEA working on the origin and radiation of Panderodus a major pelagic zone euconodont clade, hopefully to be NEWS presented at IGCP 503. Milwauke. Work has just The first occurrence of a class in the geologic record is started with Alan Owen, Tom Challands (graduate a data point of interest. The living molluscan Class student) and the BGS on the tectonic and climatic Scaphopoda has been reported to first occur in the controls on sedimentation and faunas in the Ordovician. In a 2004 publicaition, E. Yochelson Ordovician of eastern Avalonia. refuted that view and suggested that the first authentic ASTINI, RICARDO A. (Argentina). I continue to work scaphopods occur in the Early Carboniferous. on the Ordovician architecture and evolution of the sedimentary basins along the proto-Andean margin of Southern South America with particular interests CURRENT RESEARCH in comparing patterns in the allochthonous Precordillera basin of western Argentina and the AINSAAR, LEHO (Estonia). I continue working on northern autochthonous Central Andean Basins. sedimentology and stable isotope geology and basin Emphasis has also been set in the understanding of analysis of Lower Palaeozoic carbonates in the Famatina volcanic arc. In this topic I continue to Baltoscandia (with Tõnu Meidla, Andrei Dronov, collaborate with numerous biostratigraphers and Tõnu Martma and Oive Tinn). Together with Mark T. structural geologists and have now various students in Harris, Peter Sheehan, Linda Hints, Jaak Nõlvak, Peep different lines of research within the Basins Analysis Männik and Madis Rubel we continue a comparative Laboratory at the Catedra de Estratigrafía y Geología study on Baltoscandian and Great Basin Upper Histórica at the Universidad Nacional de Córdoba. Ordovician-Silurian carbonate platform sequence We are also leeding a field trip trhough the stratigraphy. Precordillera basin to show aspects, among others of ALBANESI, GUILLERMO L. (Argentina). I continue Ordovician Geology, in the next 12 Gondwana working on diverse projects regarding Lower Paleozoic meeting to be held in Mendoza, Argentina. conodont faunas from northwest Argentine basins. An BAGNOLI, GABRIELLA (Italy). I am actively working integrated conodont-graptolite biostratigraphic chart is in cooperation with R. Albani and C. Ribecai on being assembled for the Ordovician and Silurian taxonomy and palaeobiogeography of acritarchs, Systems of Argentina. I am cooperating with colleagues chitinozoans, and conodonts from the Ordovician from universities of Argentina, Spain, UK, USA, and successions of Spain and the island of Oeland Canada, on related topics of historical geology and (Sweden). Spain - Research continues on Cambrian paleontology from the Lower Paleozoic. Likewise, and Ordovician successions of Laviana and Rioseco together with several co-authors, we are preparing a thrust sheets, Cantabrian Zone, northern Spain. final proposal on a global stratotype for the base of the Oeland - Taxonomical studies of acritarchs and Middle Ordovician Series in the Argentine Precordillera. chitinozoans across the Volkhov/Kunda boundary are A new project on high resolution biostratigraphy, in progress. The succession of palynomorphs species sequence stratigraphy, events, and paleothermometry on is compared with available data on conodont the Lower Paleozoic of the Eastern Cordillera, NW biostratigraphy and biofacies, and sea-level changes. Argentina, is going to begin current year, participating BARNES, CHRIS (Canada). Extensive field-based colleagues from different universities, as well as Lower Paleozoic stratigraphic and conodont studies in graduate students. the Canadian Cordillera have produced a series of ALDRIDGE, RICHARD J. (U.K.). My Ordovician papers with Leanne Pyle, some in press. They involve activity continues to centre on the Soom Shale of four detailed platform to basin transects that have South Africa. A paper on bromalites (coprolites and

9 ORDOVICIAN NEWS Nº 22 been sampled in the southern, central and northern BERGSTROM, STIG M. (USA). 2004 was my first Rocky Mountains. Work with Shunxin Zhang is using year in retirement and I enjoyed greatly being able to my extensive conodont database to relate conodont do research full-time. Most of my work has been on biostratigraphy, biofacies and biogeography to the aspects of 13C chemostratigaphy but I have also been pattern of eustasy and tectonism that affected northern doing some research on conodonts, graptolites, and Laurentia in the early Paleozoic. Several joint papers Cambrian to Silurian biostratigraphy in North have appeared recently with others in press which deal America, northern Europe, and China. I had 10 papers with Ordovician (and Silurian) conodont taxonomy, and 11 abstracts published in 2004 so in terms of evolution, paleoecology, cladistic analyses and the publications, it was a very good year. Several other studies are close to completion and five papers are in response of the conodont communities to eustatic press. New projects have yielded some highly change. Other papers in press include one on Late signifificant results so I expect to be busy for the Ordovician conodonts from the Mithaka Formation, foreseeable future. Georgina Basin, Australia (with Tyler Kuhn) and one BLIECK, ALAIN (France). I am presently involved in on Cambro-Ordovician conodonts from the Famatina both the IGCP project 503 « Ordovician Terrane, Argentina (with Guillermo Albanesi and palaeogeography and palaeoclimate » [co-leaders : T. Mario Hunicken).The geochemistry of conodonts is Servais (Lille, France), D.A.T. Harper (Copenhagen, being pursued further in collaboration with Julie Denmark), J. Li (Nanjing, China), A. Munnecke Trotter (Australian National University and CSIRO). (Erlangen, Germany), A.W. Owen (Glasgow, UK) Other work nearing completion includes: Ashgill- and P.M. Sheehan (Milwaukee, USA)], and the Wenlock conodonts from the Canadian Arctic with French national programme ECLIPSE II, project David Jowett, and Ashgill conodonts from the « Glaciations et Crises biologiques : exemple de Whitland section, South Wales with Annalisa Ferretti. l’épisode fini-ordovicien / Glaciations and biological BENEDETTO, JUAN L. (Argentina). A study of upper crises : the case of the end-Ordovician event » Cambrian and Tremadoc rhynchonelliform [leader : J.-F. Ghienne, Univ. Strasbourg, France]. In brachiopods from the northwestern Argentina basin both cases, I will contribute about vertebrates. has been completed and submitted for publication. BRETT, CARLTON (USA). During 2003-2004 The succession of taxa along the phylogenetic lineages research on Ordovician sequence stratigraphy, recognized in this work is being investigated in order supported by an ACS-PRF grant to myself and two to refine the biostratigraphic schema of the early PhD students, Patrick McLaughlin and Sean Cornell Ordovician succession of the Central Andean basin. involved development of a comprehensive dataset of I’m continuing work on the lower Llanvirn correlated cross-sections of Upper Ordovician brachiopods from the top of the San Juan Formation, (Mohawkian: ~460-450 My) successions in three which include a varied open-shelf fauna dominated by regions of eastern North America. In total, over 3,000 plectambonitoids. With members of the ‘Centro de m of core and ~2,500 m of outcrop section have been Investigaciones Paleobiológicas -CIPAL’ we are logged. Sections and cores have been documented continuing the project on the study of the Ordovician photographically to serve as the basis of database on radiation in the Gondwana basins in comparison with Ordovician outcrop and sub-crop sections in eastern global trends (for more information see our CIPAL Laurentia. website www.cipal-unc.com.ar). Particular interest is A number of significant findings have resulted from being devoted to the early diversification and our research to date. Preliminary results are presented phylogeny of orthoids and plectorthoids, and their in papers by Brett et al. (2004) and McLaughlin et al. implications on the taxonomy of basal (2004); the salient conclusions are summarized rhynchonelliformean brachiopods. below. BERESI, MATILDE SYLVIA (Argentina). I am The Mohawkian interval of the Cincinnati Arch currently working on Ordovician biostratigraphy from region is divisible into a total of six third-order Province of Mendoza (Argentina) with Susana composite depositional sequences and nearly 20 Heredia (conodonts) in the Ponón Trehue area, San fourth-order sequences, all of which appear to have Rafael block, and in the olistostromic and siliciclastic correlative sequences in the Trenton-Utica interval in sequences of San Isidro area, Precordillera of the Appalachian Basin (Brett et al., 2004). Detailed Mendoza. Also I am working on stratigraphy, similarities exist within the shallow shelf to ramp microfacies, paleoenvironments and precise facies of these sequences in both areas suggesting correlations of the Las Chacritas Formation (Middle widespread allocyclic processes, primarily eustasy, Ordovician) and of the San Juan Formation (Lower were involved in formation of these sequences. Ordovician),Villicum Range, Precordillera of San Fingerprinting of K-bentonite samples obtained from Juan, with colleagues of the San Juan University. about ten levels in all areas is underway to test the I go on working with B. Frey in the Ordovician correlations based on pattern matching and general nautiloid fauna from the Argentine Precordillera." biostratigraphy.

10 ORDOVICIAN NEWS Nº 22

High resolution correlations enabled us to construct a surfaces, require revision and reinterpretation. We are series of cross sections that highlight regional patterns presently preparing two reports outlining these of basin dynamics. For example, in New York State revisions. we recognize a pattern of southeastward shift of BRUSSA, EDSEL (Argentina). I am actively working depocenters and relative highs within the Black River on the Ordovician and Silurian graptolites from the to lower Trenton interval, followed by westward Precordillera and Northwestern Argentina. I am also migration in the upper Trenton. This pattern appears to working with Chuck Mitchell and Jörg Maletz on the reflect foreland basin initiation followed by basin Ordovician graptolites from Bolivia and Peru. I have moveout during westward thrusting of the Taconic just finished with Blanca Toro the re-examination of allochthonous slices (Cornell et al., 2003; Cornell and the published specimens of the Rusconi collection of Brett. 2003). the Empozada Formation from the museum of Another PhD student, Brian Kirchner, and I are Mendoza. working on detailed studies of meter-scale cycles in BUATOIS, LUIS A. (Argentina). At present, I am the Upper Ordovician Kope Formation in northern interested on paleoenvironmental and sequence Kentucky and southern Ohio. We have been able to stratigraphic aspects of lower Paleozoic clastic correlate these cycles and a series of distinctive event deposits of northwest Argentina. Emphasis is on the beds and faunal epiboles into the syubsurface and integration of sedimentologic and biostratigraphic document regional patterns of change within very data within a sequence stratigraphic framework in an high-resolution time-slices. Faunal, taphonomic, and attempt to provide a more accurate stratigraphic sedimentological evidence indicates, in contrast to picture of Cambrian-Ordovician units in northwest earlier models, that the shell-rich limestones do not Argentina. Additionally, I am colaborating Gabriela simply reflect episodes of storm wave winnowing, but Mángano in her studies of lower Paleozoic rather are condensed deposits recording skeletal ichnofaunas. Gabriela and I have recently moved to buildup during intervals of basin-wide sediment Canada to join the University of Saskatchewan where starvation of several thousand year durations. we are starting new projects on Ordovician topics. Work with former masters student Russell Kohrs, in BUDIL, PETR (Czech Republic). In 2004, I finished conjunction with Dr. Neal O’Brien (SUNY Potsdam) (with Jana Bruthansova) the analysis of the has been directed toward examining microstratigraphy exuviation in Ordovician dalmanitids and acastids of and microfabrics of background and obrution the Prague Basin, which is now in print in Geologica mudstone beds (rapidly buried horizons with Acta (Budil and Bruthansova 2005). I am also finally spectacular fossil preservation) in the Kope finishing works on the revised manuscript of revision Formation. We have found two distinct types of of these two families (this revision I finished already microfabrics that appear to be associated with in 2002 but in huge extent as Ph.D. thesis) and I depositon of silty mud turbidites and of pure clay would like to submit it into the; Transactions of the floccules from suspension, perhaps as density Royal Society of Edinburgh;. During 2004, I studied cascades from detached flows. We are exploring the plenty of temporarily outcrops of the Ordovician consequences of these two distinct processes for fossil rocks in the Prague, the description of some is bed preservation and geographic extent. prepared together with Petr Kraft and Pavel Rohlich. We have also undertaken a new approach to Short discussion of the changes in molting of correlation, utilizing high-resolution magnetic trilobites during the ontogeny (including Ordovician susceptibility and event stratigraphy (MSEC). In forms) I presented during the Czech and Slovakian cooperation with Brooks Ellwood (Louisiana State Palaeontological Conference in Bratislava. With Olda University) we have begun a detailed and Fatka and Jana Bruthansova, we prepare the study of comprehensive program of sampling (at 10 cm exuviations and taphonomy of the Bohemian intervals) of reference sections of the Upper Cambrian and Ordovician agnostid trilobites. With Ordovician of the Cincinnati Arch region. Comparison Olda Fatka and Jiri Fryda (as invited editors), we of profiles developed for independently correlated compiled the Volume 3-4/2004 of the Journal of the sections separated by 15 km show that nearly identical Czech Geological Society. I also participated more patterns are produced in each case. Thus, this than two months on the geological mapping of the technique can be used for high-resolution correlations. Mongolian Altai (including Ordovician, but Moreover, spectral analysis of MSEC profiles is being metamorphosed rocks). However, my main scientific undertaken to test for patterns of high-order cyclicity activities in 2004 were focused on systematic study of in Mohawkian-Cincinnatian strata. the Lower Devonian; odontochilinid; trilobites of the Finally, one further result of detailed analysis of these Prague Basin. In 2004, I published also short Upper Ordovician sequences is the development of a description of the new phacopid trilobite from the revised model of sequence stratigraphy in mixed Lower Devonian of the Barrandian area. An siliciclastic-carbonate facies. Aspects of the late extensive; Virtual museum of the Czech Geological transgressive systems tract and the late highstand Survey; with on-line accessible palaeontological (regressive) systems tracts, and their bounding

11 ORDOVICIAN NEWS Nº 22 collections databases and photos of the most important geochronological data on Ordovician sediments from specimens I built at www.geology.cz. several sections from the Argentine Precordillera CARRERA, MARCELO G. (Argentina). I’m Terrane. We start geochemical studies on detrital continuous working on the Ordovician sponges and chromian-spinels of the Caradoc sediments as an bryozoans from Western Argentina. Global important provenance indicator of mafic and diversification of sponges was the most important ultramafic rocks. project in the last three years and results have been COCKS, L. ROBIN M. (U.K.). The Natural History published in the Columbia University Press volume Museum, London. 2004 has been a busy related to the Ordovician Radiation. I’m also year, finishing and submitting systematic papers, both interested in the paleoecological aspects of the now accepted on the strophomenid brachiopods of the Ordovician biota from the Argentine Precordillera, mid-Ashgill Boda Limestone of Sweden, and (with including reef related organisms. Leonid Popov) on the late Caradoc brachiopods of the CHEN, XU (China). I am actively working on Dulankara Formation of the Chu-Ili terrane, Ordovician-Silurian transition strata and graptolites. It Kazakhstan. Papers were also submitted (with includes the Hirnantian GSSP, latest Ordovician to Richard Fortey) and accepted on the mid-Ashgill earliest Silurian graptolite taxonomy and extinction- Boda Global Warming Event and a small review of recovery-radiation events. From 2005, I am working the European faunas which affected the Caledonide on Darriwilian to "Caradocian" graptolites from Orogeny, and (with Trond Torsvik) on the history and Tarim, Western North China and Yangtze region. My palaeogeography of Baltica as a separate terrane from co-workers include Zhang Yuandong, Fan Juanxian, the Precambrian until the Silurian. The Mike Melchin, Dan Goldman and Stan Finney. On the Strophomenoidea and Plectambonitoidea Addenda, other hand, I am also working with Stig Bergstrom, some 57 genera, mostly Ordovician, for the Treatise Warren Huff, and M. Saltzman on Ordovician on Invertebrate Palaeontology brachiopod volumes conodont bearing strata and isotope analysis. I have were also submitted. Much time was spent on editing invited Stig for a short field work in Guizhou and (with Dick Selley) The Encyclopedia of Geology, Anhui in April, 2004. published in five volumes by Elsevier early in 2005. Dan Goldman is invited to visit Nanjing and work Work also started with Trond Torsvik on a with me on the Darriwilian-"Caradocian" graptolites Precambrian to Palaeozoic review of Siberia and with from April to May, 2005. I am planing to participate Cees Van Staal on the tectonics and faunas of the the coming 503 Project conference in Milwaukee in northern Appalachians from the Cambrian to the June. Will work with Art Boucot to complete editing Devonian. Lectures, chiefly on palaeogeography, of our Climate Book in Corvallis as well. Will were given at the meetings at Uppsala, Tallinn, participate the ICS meeting in Belgium in September. Erlangen and also in Britain. I am also try to apply a traveling support for a short COOPER, ROGER (New Zealand). Research visit to Bohemia for the O-S sections and then visit underway with Pete Sadler on the Ordovician Poland afterwards in September. timescale (methodology and development) and its CHOI, DUCK K. (Korea). I have been mainly working application in macroevolutionary studies, revision of on the Cambrian-Ordovician trilobites of Korea. the Cambrian timescale (with John Shergold) and During the last couple of years, we also have been Silurian (with Pete Sadler and Mike Melchin), as well deeply engaged in studying newly discovered as Ordovician (with Pete Sadler) for the new stylophorans of Korea, which are frequently Cambridge U.P. book (Gradstein et al., due out in associated with trilobites in the interval across the Februiary). Revision of the New Zealand Geological Cambrian-Ordovician boundary. In addition, we are Timescale (published December 2004). trying to expand our research area into North China COPE, JOHN C.W. (UK). I have several Jurassic which shows a close biogeographic link with Korean projects to complete which are competing with time peninsula during the early Paleozoic times. Last year on Ordovician bivalves, but I am in the process of we made a couple of field trips to Shandong area for describing Ordovician bivalves from Iran and hope to reconnaissance survey. start description of some early Arenig, CINGOLANI, CARLOS (Argentina). Report of monoplacophorans from Wales. activities: I am actively working on the provenance DAHLQVIST, PETER (Sweden). I am workning on the and tectonic setting evolution of the Early Paleozoic Late Ordovician - Early Silurian sedimentary siliciclastic sediments from Argentine Precordillera succession in Jämtland, central Sweden. The main Terrane. New geochemical, isotopical and focus is sedimentology but the study also incorporates geochronological data were obtained. In work on biostratigraphy, correlation, biofacies, and collaboration with A. Rapalini we finished a work on provenance studies. the Late Ordovician paleomagnetic pole for the Pavón DÍAZ-MARTÍNEZ, ENRIQUE (Spain). I am Formation (San Rafael Block). A PhD student were currently working on the evidence for the Paleozoic co-orientated on microprobe, SEM, CL, heavy glaciations in Spain and in the Central Andes (mostly minerals studies, and U-Pb and Sm-Nd Peru and Bolivia). The evidence we keep finding

12 ORDOVICIAN NEWS Nº 22 in western Gondwana (South America) points to an Estonia and Ireland to determine paleoenvironmental Early Silurian (and not late Ordovician) glaciation of and diagenetic histories of the rocks. This work is this area. with Patrick Wyse Jackson (Trinity College, Dublin, DORNING, KEN J. (UK). I'm continuing to work on Ireland), William Patterson (University of Palaeozoic acritarchs, other phytoplankton, Saskatchewan, Canada), Andrej Ernst (Kiel chitinozoans, palynology and stratigraphy, as a University, Germany), and Linda Hints (Tallin consultant trading as Pallab Research and academic Technical University, Estonia). It is being funded by research at the University of Sheffield, England. the Petroleum Research Fund. Current work includes investigations on the acritarch KRAFT, JAROSLAV (Czech Republic). I continue abundance within the late Cambrian to Tremadoc studies on Ordovician graptolites and stratigraphy, (Tremadocian) sections in Shropshire and Wiltshire, especially in the Bohemian Ordovician. I participated England, where exceptional abundances of up to in the project supported by Grant Agency of the 550,000 acritarchs per gram are recorded, with initial Czech Republic on comprehensive study of the results presented to the phytoPal meeting in December Klabava Formation (?Tremadocian-Arenigian). 2004. The Ordovician acritarch and chitinozoan KRAFT, PETR (Czech Republic). I continue in biozones together with biohorizons are being reviewed studies of Ordovician stratigraphy, graptolites and for the palynological reference sections in the other fossils, especially from Bohemian Ordovician. Tremadoc, Arenig, Llanvirn, Llandeilo, Caradoc and In 2004 the project (Grant Agency of the Czech Ashgill from the British Isles, with the aim to provide Republic) on comprehensive study of the Klabava correlation with the proposed global standard Formation (?Tremadocian-Arenigian) was finished. stratotype sections. Identification and correlation of Its results has brought new view to stratigraphy and the base of the Helosphaeridium citrinipeltatum development of the Prague Basin during Lower and acritarch biozone in the late Hirnantian is important Middle Ordovician. These research has been used in for recognising post late Ordovician glacial the subsequent studies on history of the Prague Basin sedimentary sequences. I have spent some time (project of Czech Academy of Sciences) which is a pulling together data for the phytoPal project, funded part if the IGCP project no. 497. The study of by the Leverhulme Trust: a listing of Palaeozoic Sphenothallus and similar forms is in stage of data phytoplankton (acritarchs and prasinophycean algae) summarizing (project of Grant Agency of the Czech references compiled by Gary Mullins (Leicester) is Republic). I continued a study on palaeoscolecidans now online. In my capacity as president of the together with Oli Lehnert. New approach of Chitinozoan Subcommission, the CIMP webpages classification of this group is tested. have been updated http://www.shef.ac.uk/ FINNEY, STAN (USA). In August 2004 at the 23rd ~cidmdp/cimpsubc.html, the Chitinozoan Newsletter IGC in Florence, my two terms (8 years) as edited with Gary Mullins: Subcommission Chair ended. At first, I was http://www.shef.ac.uk/~cidmdp/archnews.html nostalgic. I enjoyed leading the Subcommission, and I I have prepared a report on the activities of the missed the role very much. Now, however, I am very Acritarch Classification Working Group for 2004 for happy that Chen Xu has ably taken over the the Acritarch Newsletter, including the latest acritarch leadership. I have moved on to other projects, classification groupings www.shef.ac.uk/~cidmdp/ although I have been reviewing GSSP proposals cimpsuba.html (Wangjiawan North, and Black Knob Ridge). This FAN, JUNXUAN (China). I am working on the makes more work for the authors of the proposals, following aspects: 1) the Late Ordovician graptolite but, I hope, the revisions will ensure that the extinction event and succeeding survival and recovery proposals meet with minimal objection and full in South China which is financially supported by the approve when submitted to votes by ICS. Natural Science Foundation of China. Some new I am organizing the 3rd ICS workshop on "Future collections have been made from South China in 2004. Directions of ICS", which will take place in Leuven, My colleagues and I will finish do some additional Belgium in September 2005. Participants will be the field work in 2005 in South China. 2) cladistic study chairs of all ICS subcommissions. ICS had a very on the DDO and N fauna during the Ordovician and strong presence at the 32nd IGC in Florence with Silurian transition. 3) the palaeontological and many workshops and symposium sessions sponsored statigraphical database of South China which is by the executive and the many subcommissions. supported by the Chinese Academy of China. I am Considerable progress is being made on selection of also working with Dan Goldman on the GSSPs for stages for all systems, and the new biogeographical database for the third-edition Geological Time Scale is nearing completion. I graptolite treatise. 4) manage the new websites for the encourage you to visit the ICS website at Ordovician Subcommission (ISOS) and Silurian stratigraphy.com to view it yourself. With Chris Subcommission (ISSS). Barnes and Bill Berry, I convened a symposium at KEY, MARCUS (USA). I´m actively working on stable IGC that was sponsored by the Ordovician C and O isotopes in Ordovician bryozoans from Subcommission. It was titled "Global Ordovician

13 ORDOVICIAN NEWS Nº 22

Earth System". Many of the papers presented in the and biostratigraphical analysis, long range session and many others subsequently recruited are correlations of Iranian Lower to Middle Ordovician now being prepared for a Special Publication of the sequences and paleobiogeographical affinities of Geological Society of America. Early to Middle Ordovician trilobites of Iran. 33 I continue with my work on the provenance of species from 24 genera of Ordovician trilobites are siliciclastic sediments in the Cambro-Ordovician identified and documented from the studied sections. stratigraphic succession of the Argentine Precordillera Strtigraphical and geographical variations in in collaboration with Silvio Peralta in San Juan and taxonomic compositions of the assemblages used for with colleagues with special expertise in U-Pb reconstruction of the sequence of depth related geochronology, Nd-Pb isotope geochemistry, and biofacies characteristic of the shelf of the Alborz and sandstone petrography. A paper on Middle Cambrian Central Iran terranes. Numerous occurrences of sandstones is in press with Acta Geologica and will conodonts recovered for the first time from the upper appear in 2005. Two other papers are in preparation. Tremadocian to lower Darriwilian part of the As usual, I will be in north-central Nevada this Lashkarak Formation provide a good summer, mapping the Vinini Formation and related biostratigraphical framework for an accurate dating of rocks of the Roberts Mountains allochthon and the observed faunal and environmental changes. It starting a new project with Chuck Mitchell and many was confirmed that the base of Ordovician in the others on the Late Ordovician graptolite extinction. eastern Alborz Mountains situated closely to the base Of course, I have a backlog of many papers that need of the Lashkarak Formation below the first to be written. I hope to complete a few of them this appearance of Asaphellus-Dactylocephalus coming year. Association. The position of the Cambrian- FRISK, ÅSA (Sweden). I am working on my PhD and Ordovician boundary in the Shirgesht section is less the primary objective of my research is to identify well constrained but it must be within the lower part faunal recovery patterns after bolide impacts in the of the formation. In general Early to Middle Ordovician Baltoscandian epicontinental sea, with Ordovician trilobite faunas of Iran show closest emphasis on successions in the Lockne and Tvären similarity to the contemporaneous faunas of South craters (Sweden). By recognizing how the abundance China and Turkey and in less extent to the faunas of of species changed in relation to the varied West peri-Gondwana (Avalonia, Armorica and Saudi environments we will be able to reconstruct how the Arabia). There is no distinct similarity between pre-impact faunal groups recovered gradually as life trilobite faunas of Iran and Baltica, by contrast returned onto the sterile seafloor. The project deals conodonts and linguliform brachiopod assemblages with taxonomy and biostratigraphy of the post-impact contains many taxa common with Baltica. Dalby Limestone, reconstructing the Ordovician GONCUOGLU, M. CEMAL (Turkey). I am working ecosystem in the crater as well as working with facies with a group of Turkish and Bulgarian colleagues on associated with deposition in the crater. This project is the Palaeozoic of NW Turkey, which a collaboration with Lars Holmer (Uppsala includes Ordovician successions, not yet documented Univerisity), Maurits Lindström (Stockholm in detail. University) and Jan Ove Ebbestad (Uppsala HARPER, DAVID A. T. (Denmark). Research University). Further I am working on trilobites from continues on Ordovician stratigraphy and faunas in Kazakhstan and The Bjørkåsholmen Formation, Scotland (with Yves Candela, Euan Clarkson and trilobites and stratigraphy (with Jan Ove Ebbestad and Alan Owen), Ireland (with Matthew Parkes, George Lars Holmer). Sevastopulo and Svend Stouge), Greenland (with GANIS, G. ROBERT (USA). Presently I am teaching Svend Stouge, Jørgen Christiansen, Doug Boyce and adjunct at Millersville University, Pennsylvania and Ian Knight), western Russia (with Christian also continue consulting. Graptolite work has slowed, MacØrum and Arne Thorshøj Nielsen) and the but I expect to continue activity in the Martinsburg greater Himalayan region (with Nigel Hughes and Formation of Pennsylvania this summer. I have Lars Holmer). Work continues with Rong Jia-yu, several publications accepted for 2005; details next Chen Xu and Zhan Ren-bin on refining events during volume. the late Ordovician and early Silurian in South China, GHOBADI POUR, MANSOUREH (Iran). I am actively a critical area for the understanding of the Hirnantian working on the Lower to Middle Ordovician trilobites Substage. Joint manuscripts are in press on and biostratigraphy of Iran. Extensive new collections Darriwilian brachiopod faunas and early Silurian from the Lashkarak Formation, eastern Alborz brachiopod assemblages from South China. Further Mountains and from the Shirgesht Formation, eastern additions to PAST have continued to enhance the Central Iran form the basis for the taxonomic popularity of this free software package for relationships, stratigraphical distribution and palaeontologists and a book based on techniques in characters of faunal replacement through the the package will be published by Blackwell later this Ordovician sequences in various part of Iran, biofacies year. (PAST - PAleontological STatistics Software. Version 1.32 is available at

14 ORDOVICIAN NEWS Nº 22 http://folk.uio.no/ohammer/past). Anders Tychsen Early Ordovician material. I am concerned about the (together with David Harper) has established a Ordovician stratigraphy, especially what is related to substantial database for orthide brachiopods, which the Baltic region. In addition, I am also developing includes much Ordovician data; two publications are collections management database at the Institute of in review on the history of this important Ordovician Geology at TUT, which holds data on a great deal of clade. Ordovician fossils and Estonian geological sites as A new Ordovician IGCP (503) was successfully well (accessible at http://sarv.gi.ee). launched in Erlangen and the first newsletter is now KANYGIN, ALEXANDER V. (Russia). The area of my available (http://sarv.gi.ee/igcp503/). Within the frame interests includes: paleontology (ostracodes), of the project Harper is currently assembling a group stratigraphy, paleoecology, paleobiogeography, of specialists to investigate the relationships between ecosystem evolution. sea-level change, biofacies and bioevents. All are KERSHAW, STEVE (UK). Continues to work on welcome to join. Ordovician sequences and reefs with Yue Li HARRIS, MARK (USA). I and currently working with (Nanjing). Our focus is the Late Ordovician Peter Sheehan (Milwaukee Public Museum), Leho extinction sequence in the Yantgze platform. Below Anisaar and Madis Rubel (Univesity of Tartu), Linda are listed two recent papers, and further work is in Hints, Peep Männik, and Jaak Nõlvak (Institute of preparation. Geology, Tallinn) on a project to compare KIIPLI, TARMO (Estonia). I am actively working on sedimentary facies, stratigraphic sequences and the correlation of volcanogenic interbeds in community structures of the Upper Ordovician and Ordovician and Silurian sections. We have introduced Lower Silurian sections of Estonia and the Great method for correlation of bentonites on the base of Basin (USA). Results were presented at the Eighth sanidine composition. Sanidine is a magmatic Meeting of the Working Group on the Ordovician phenocryst in volcanic rocks having specific for Geology of Baltoscandia, and short course on particular eruption Na/K ratio, which can be used for carbonate sequence stratigraphy was presented at the identification of the same volcanic bed in different University of Tartu. sections. Method is very effective in Telychian and HINTS, LINDA (Estonia). I am continuing studies of Ashgillian of Estonia, but can be used with some the Upper Ordovician sections and brachiopods. The difficulties also in Caradocian and Wenlockian study on the stratigraphy, sequences and faunas of the sections. Pirgu Stage in the East Baltic will be continued with LANDING, ED (USA). My present Ordovician work colleagues in Estonia and USA. Together with Mike focuses on sequence stratigraphy of the Ordovician Bassett we have planned to revise the genus part of the Beekmantown Group, eastern New York Cyrtonotella, which is a beautiful and well known and western Vermont. A recently submitted brachiopod genus in Estonia, but needs for revision. manuscript (with S.R. Westrop, Oklahoma Museum Hopefully I and David Harper will finish a manuscript of Natural History) illustrates conodonts, trilobites, on Ordovician plectambonitacean (Alwynewlla / and chitinozoans from the Beekmantown, NY, area Grorudia), which are common for the uppermost succession, and emphasizes the extreme stratigraphic Middle Ordovician/lowermost Upper Ordovician in incompleteness of the Beekmantown by comparison Central East Baltic and Scandinavia. with the Ibex area—successive formations represent HINTS, OLLE (Estonia). I'm continuing studies on eustatic maxima in the late Skullrockian, middle Ordovician-Silurian jawed polychaetes (scolecodonts) Stairsian, late Blackhillsian, and middle and other organic-walled microfossils. A recently Whiterockian. The Whiterockian on the New York started project is related with dynamics of different Promontory has been identified in the typically microfossil groups in the Baltic Ordovician and restrictive marine facies of the Providence Island Silurian (primarily chitinozoans, scolecodonts and Formation at the top of the Beekmantown Group conodonts; several colleagues from Tallinn are (colleagues include S.R. Westrop and Bosiljka involved). The main objectives are to see if the Glumac of Smith College, Northampton, MA [stable frequency patterns of different groups correlate with isotope stratigraphy]). Two projects nearing final each other and/or with properties of the sediment, and write-up include: A) examination of depositional test response of selected groups to some biotic and environments, sequence stratigraphy, and conodont environmental events (first results expected in 2005). and macrofossil (particularly Rhabdinoporas) Together with Mats Eriksson (Lund, Sweden) we have biostratigraphy of the terminal Cambrian–earliest compiled an updated and extended review on the Ordovician Tiñu Formation, Oaxaca, Mexico, (with palaeobiogeography and diversification history of Duncan Keppie, Autonomous University of Mexico) Ordovician jaw-bearing polychaetes (paper and B) the first conodonts and chitinozoans from the submitted). Together with Jaak Nõlvak we finished a Tremadocian–Arenigian boundary on the Avalon small project on a find of Tremadocian scolecodonts continent (from Cape Breton Island, Nova Scotia). and diverse chitinozoans from North Estonia (paper LEFEBVRE, BERTRAND (France). I keep working on submitted), but we are certainly looking for additional stylophorans and other "bizarre" Cambro-Ordovician

15 ORDOVICIAN NEWS Nº 22 echinoderms. In 2004, Seung-Bae Lee, Duck Choi, and, as such, bear very close resemblances to those of and myself completed a comprehensive study of new Newfoundland, and to Australasia, in general. At faunas of Cambro-Ordovician stylophoran present, we recognize the Tetragraptus approximatus, echinoderms from Korea (one paper published, one in Tetragraptus fruticosus, Didymograptellus press, and one submitted). In collaboration with protobifidus-bifidus, and possibly the Isograptus v. Mansooreh Ghobadipour and my PhD student, Elise victoriae and Isograptus v. maximus biozones. Nardin, I have also investigated and described new Unfortunately, the lower Castlemainian is not and diverse "cystoid" assemblages from the Middle recognizable. We hope to complete the study in 2005. Ordovician of Iran (one paper in press). In 2004, I LI, JUN (China). I continue working on Ordovician made some more field work in the Lower Ordovician acritarchs from China. In July, I went to Granada, of Anti-Atlas, Morocco, accumulating a large Spain for XI IPC, participating in the Lower collection of echinoderms, and especially of new Palaeozoic palynology/CIMP symposium where I stylophorans (cornutes, mitrates), that I have just gave a talk. I then spent one month in Lille, France, begun to describe, and will represent my main focus working with Thomas Servais on Ordovician for 2005. In June 2004, one of my research students, acritarchs from South China. From September 1-12, I David Ware, has been awarded his DSER dedicated to participated in the opening meeting of IGCP 503 a morphometric analysis of the cornute genus (Early Palaeozoic Palaeogeography and Phyllocystis (based on material from Montagne Palaeoclimate) in Erlangen, Germany, and gave a Noire), and a description of new specimens from talk. This was followed by the post-conference field Morocco. trip in Oland and Gotland, Swenden. From LEGRAND, PHILIPPE (France). I continue to work on September 20 to December 14, I am at Central Lower Ordovician graptolites of Algerian Sahara, Michigan University, Mount Pleasant, USA working Caradocian fauna of Algerian Sahara with Algerian with Reed Wicander on Upper Ordovician acritarchs colleague and the biostratigraphy of the Late from Tarim, China. Gary Mullins joins us in the 2- th Ordovician glacial episode. 10 /Nov. to discuss the Phytopal project. In June my LEHNERT, OLIVER (Germany). During the last 2 MsC student YAN Kui submitted his master thesis: years and my stays at the Charles University/Prag and Biostratigraphy and biodiversity of Ordovician the University of Lille in N’ France I have been acritarchs from Meitan Formation of Tongzi County, involved in several projects on topics like stable Guizhou Province, South China. In September, 2004, isotopes, early evolution of the Prague Basin, YAN Kui received a PhD grant to continue working hydrothermal vents (Lower Ordovician), neptunian on acritarchs for the next three years in Nanjing. dykes (Devonian) and a few other regional Barrandean LÖFGREN, ANITA (Sweden). I am about to publish a questions, but now I want to concentrate a bit more on paper with Viive Viira and Kaisa Mens (Tallinn) on a conodonts again. I started working on some interesting biostratigraphical and sedimentological study from Ordovician conodont faunas from Iran, Saudi-Arabia, Estonia. I am also currently working with Tatiana Czech Republic and with several collegues from Tolmacheva (St Petersburg) on a monograph of different countries and I am still continuing to Microzarkodina, with Sven Laufeld and Yngve Grahn describe conodonts and associated microfossils from on early Palaeozoic rocks of the Bothnian Sea, and previously investigated areas. After a short stay in with Stig M. Bergström (Columbus, Ohio) on Prague with a Humboldt grant (until end of March biostratigraphical correlation at the base of the 2005), I want to continue with Michael Joachimski Middle Ordovician in Sweden. and Werner Buggisch in a long planned project on LUBNINA, NATALIA (Russia). I am continuing the oxygen isotopes from Cambrian through Silurian paleomagnetic studies of the Ordovician rocks of conodonts (from different paleogeographic areas) to Baltic-Ladoga Glint with my colleagues S. Shipunov, calculate sea-water temperatures. Goal is to get a good P. Fedorov, T. Tolmacheva, A. Zaitsev, V. Ershova. dataset with respect to paleoclimatic changes and Currently I am working on magnetostratigraphy of connected extinction events. First data from the the Early-Middle Ordovician and correlation Silurian of the Prague Basin are quite promising and paleomagnetic data obtained on Ordovician rocks of we started also the analysis of some Ordovician Baltic-Ladoga Glint and sequences of Uralian margin material from different areas. of Baltica. In 2003-2004 I've got new paleomagnetic LENZ, ALFRED (Canada) and JACKSON, DENNIS data which are evidence of low-latitudinal position (UK). We are commencing a study of upper (20-30th S latitudes) of Baltica during Early-Middle Lancefieldian to Yapeenian (~Arenig) graptolites of Paleozoic time. northern Yukon, Canada. This study—like our LUDVIGSON, GREG (USA). I am actively working on recently published studies of Tremadoc graptolites of developing a refined record of the carbon isotope the same region—will be taxonomically and chemostratigraphy of the mid-Caradoc in the Upper biostratigraphically centred. The faunas are of high Mississippi Valley region, in collaboration with Brian diversity, typical of the “Pacific graptolite faunas” Witzke and other colleagues.

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MALETZ, JÖRG (Germany). I am currently working MCLAUGHLIN, PATRICK (USA). I am currently with Dan Goldman (Dayton, Ohio, USA) and Sven participating in an ACS supported detailed regional Egenhoff (TU Bergakademie Freiberg, Germany) on stratigraphic analysis of the Upper Ordovician Middle to Upper Ordovician biostratigraphy and (Trenton equivalent; Chatfieldian) of eastern North graptolite faunas of southern Scandinavia. A revision America (Kentucky, Ohio, Pennsylvania, New York, of the Castlemainian to early Darriwilian isograptid and Ontario) along with fellow doctoral candidate biostratigraphy is in progress, based on the Sean Cornell and our advisor at the University of successions in southern Scandinavia (Tøyen Shale) Cincinnati Dr. Carlton Brett. My focus in this project and western Newfoundland (Cow Head Group). Work has been to recognize (if present) and investigate on Chewtonian to Castlemainian graptolite regularly repeating (vertically) facies successions and biogeography from the Basin and Ranges Province event horizons, such as prominent erosion surfaces (Utah, Nevada, USA) is planned. and hardgrounds, in order to refine sequence I am also working together with David Bruton (PMO stratigraphic models and establish their applicability Oslo) on taxonomy and biostratigraphy of early to to cratonic mixed carbonate-siliciclastic successions. Middle Ordovician (Chewtonian to Darriwilian) The results of this analysis suggest that there are at radiolarian faunas from western Newfoundland and least three scales of cyclicity present in Upper Spitsbergen. The faunas are well preserved and Ordovician strata in eastern North America, which diverse and give important clues to their early seem fractal in their relationships. That is, each has evolution. Their age is closely constrained by roughly the same overall motif, simply increasing in associated graptolite faunas in the samples. internal complexity with increasing duration. In this MÁNGANO, M. GABRIELA (Argentina). I am respect they are similar to the relationship between particularly interested on the evolutionary implications parasequences, systems tracts, and depositional of Cambrian-Ordovician ichnofaunas in the context of sequences in classic sequence stratigraphic models. lower Paleozoic faunal changes and evolutionary However, the general motif of these cycles is much radiations. A brief review on this topic coauthored more similar to Pennsylvanian cyclothems, containing with Mary Droser was published in the recent book on a a shaly or micritic lowstand systems tract, a The Great Ordovician Biodiversification Event, where transgressive systems tract composed of skeletal we attempted to summarize ichnologic evidence from grainstone and rudstone, shaly or shaly wacke- different environmental settings in various packstone (often very rhythmic) highstand systems paleocontinents, with extensive reference to tract, and a calcarenite or silt-sandstone dominated Gondwana. Also, I am studying a number of lower falling stage systems tract. The primary difference Paleozoic ichnofaunas from NW Argentina trying to between Ordovician and Pennsylvanian cyclothems is articulate trace fossil and facies analyses with the magnitude of facies offset/dislocation (indicative paleoecology and biostratigraphy, in a sequence of tens rather than hundreds of meters of sea level stratigraphic framework (in collaboration with a long fluctuation) at sequence stratigraphic surfaces such as list of Argentinian colleagues!). Our attempt is to maximum starvation/flooding surfaces and sequence record detailed case studies that can provide a solid boundaries. In fact, Upper Ordovician cycles are ground for macroevolutionary studies and a better most similar to Cretaceous cycles of the Western understanding of the Lower Palaeozoic of western Interior Seaway in Colorado and western Kansas, as Gondwana. Part of my research is focused on trilobite well as Silurian and Devonian cycles of the trace fossils and is developed in cooperation with Appalachian Basin. These and many other trilobite specialist Beatriz Waisfeld. PhD students observations are detailed in recent publications by our Marcos Jimenez and Pamela Such are working on working group at the University of Cincinnati (listed their dissertations in ichnology, sedimentology and below) and several additional papers in progress to be stratigraphy of lower Paleozoic siliciclastic and submitted in the upcoming months. One of these volcaniclastic rocks of NW Argentina. Our recent “work(s) in progress” will be included in an move to Canada is offering us a new exciting upcoming special issue of Palaios featuring papers on perspective of Laurentian geology and new faunal response to sea level fluctuation. This paper possibilities for interaction and cooperation. details aspects of the Point Pleasant Formation, a MÄNNIK, PEEP (Estonia). I continue to work on the skeletal grainstone/rudstone interval widely exposed evolution, ecology and taxonomy of Ordovician and in northern and central Kentucky, which displays a Silurian conodonts from Baltic, Arctic regions and very well developed deepening upward signature, Siberia, and on conodont-based high- resolution expressed as a systematic change in faunal stratigraphy. composition, taphonomic condition of those fossils, MCCRACKEN, SANDY A.D. (Canada). I continue to and sedimentary structures. Thick skeletal limestone work on Middle to Upper Ordovician, Silurian, and successions such as the Point Pleasant have largely Devonian conodonts from various locations in been overlooked because of their massive nature, Canada. Much of my time is now assigned to outreach simply regarded as “shallow water deposits” or and paleontological databases. indication of shallowing. Results from analysis of the

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Point Pleasant and many other Upper Ordovician limestone-marl alternations. I am co-leader of the “massive” limestones indicates that these units did IGCP project no 503 "Orovician Palaeogeography form in shallow water conditions initially, but and Palaeoclimate". deposition continued in increasingly deeper water (sea NARDIN, ELISE (France). I work on the radiation of level rise). Their clean nature is only partially due to primitive Paleozoic echinoderms, especially winnowing (with the degree of winnowing decreasing blastozoans, with diversity, disparity and phylogeny upward through the unit) and largely the signature of studies. During the early Paleozoic, blastozoan siliciclastic sediment starvation. echinoderms include 12 classes, which are various The Upper Ordovician strata of eastern North morphologies. I am currently working on the America, because of their widespread nature, excellent description of homologies – notably based on the preservation, wide range of facies, and faunal Extraxial-Axial Theory, to construct a consistent richness, have yielded insights into the origin of mixed phylogenetic hypothesis. I am particularly interested carbonate-siliciclastic stratigraphic patterns in the cystoids and eocrinoid classes, the last being recognizable throughout much of the Phanerozoic. It the essential group to understand relationships is our hope that Upper Ordovician strata in eastern between blastozoan classes. Both early and middle North America (Kentucky in particular) will become a new field reference for teaching cratonic sequence cambrian eocrinoids already have many of the stratigraphy. characteristic features of the subphylum of MERGL, MICHAL (Czech Republic). I am actively blastozoans. working on three palaeontological subjects; trilobites, At the same time, I am interested in the blastozoan „cystoids“ (in cooperation with R. J. Prokop) and morphological disparity (traditional and geometric isolated sponge spicules, all of the Upper morphometries) – especially on cystoids, to model the Tremadocian in Bohemia. dynamics of the echinoderm organisation plan MIKULÁŠ, RADEK (Czech Republic). I´m working through evolutionary time. on ichnofabrics and trace fossils from the Ordovician NOWLAN, GODFREY (Canada). As noted in earlier of the Baltic area, especially the St Petersburg Region newsletters, my work on conodonts has been severely (with Andrei Dronov). curtailed for the last two years. I continue to work MODZALEVSKAYA, TATIANA L. (Russia). I’m slowly on a few projects: 1. Conodont biostratigraphy actively working on data of Ordovician Regional and paleoecology of the Ordovician and Silurian stages of western slope of Urals, Novaya Zemlya and rocky shoreline exposed on the shore of Hudson Bay northeastern of East-European Platform needed for near Churchill, Manitoba. Several cores were drilled filling in base of Russia Stratigraphical Nomenclature. in 2003 and these were recently sampled in detail. The project of Late Ordovician-Silurian Work is joint with Graham Young (Manitoba hypostratotypes will be prepared till the end of the Museum) and Bob Elias (University of Manitoba). next year. I have not been working on Ordovician 2. The Nd isotope ratios and Sm/Nd ratio and brachiopods, but the manuscript on the earliest conodont paleoecology of late Ordovician strata in terebratulids was prepared for Palaeontology. the subsurface of Saskatchewan. Work is joint with The paper: Atlas on Paleozoic Fauna of Taimyr Chris Holmden (University of Saskatchewan) and Penninsula. 2003. Authors: A.F.Abushik, T.L. Fran Haidl (Saskatchewan Industry and Research). Modzalevskaya, T.Yu Tolmacheva, L.M. Mel’nikova, 3. Early Cambrian embryos and small shelly fossils N.N. Sobolev, R.F.Sobolevskaya, where are presented from the Wernecke Mountains, Yukon. Joint work the monographic descriptions of Ordovician, Silurian, with Leanne Pyle (University of Victoria) and Guy Devonian brachiopods, ostracods and conodonts, was Narbonne (Queens University). 4. Service reports for given the second Hans Raussing purse. clients of the Paleontology Laboratory at the MOREAU, JULIEN (France). I'm currently doing my Geological Survey of Canada. PhD on Architecture and Characterisation of The Late ORTEGA, GLADYS (Argentina). I am working on Ordovician Glacial Deposits of the Murzuq Basin Early Ordovician graptolite faunas from Eastern (Libya). I'm actively working on proglacial and Cordillera and the Famatina System of NW postglacial sedimentation, stratigraphy and Argentina. I have recently finished three papers about corresponding depositional/ice process interactions. Tremadocian graptolites in those geological Ordovician Ice-sheet dynamic is also a major item of provinces. Besides, I continue studying Middle and my study. This topic tends to link internal glaciated Late Ordovician graptolites from the Argentine shelf records to ice-distal ones. Precordillera. Last year, I began to prepare a paper MUNNECKE, AXEL (Germany). My research topics about the Upper Ordovician Diplacanthograptus are 1) climate reconstructions in the Palaeozoic caudatus Zone at La Invernada Range, Central- (especially Silurian) by means of stable carbon and Western Precordillera co-authored by A.L. Banchig, oxygen isotopes, 2) Palaeozoic calcareous micro- and G.L. Albanesi and G. Peralta. nannofossils, and 3) origin and diagenesis of OWEN, ALAN (UK). I am continuing work on trilobite

18 ORDOVICIAN NEWS Nº 22 biodiversity change, especially in Avalonia, in the to Londonderry, an outlying suburb of Sydney (for context of IGCP 503 (‘Ordovician Palaeogeography details of my new address and other contacts, see and Palaeoclimate’) for which I am one of the co- below). During the first half of the year, the entire leaders. Work also continues, albeit slowly, on the Palaeontology Collection of the Geological Survey of Ordovician palaebiogeography and terrane evolution NSW was packed and moved to its new location at of the Caledonides of Britain and Ireland. As for my the Londonderry Core Library. This involved research students: Kathy Keefe has obtaned her MSc unpacking all specimens from wooden drawers in the on aspects of the taxonomy and palaeogeographical old compactus, doing a stocktake by checking their origins of the Ashgill trilobites from the Girvan numbers with the catalogue, and then rewrapping the district, Sarah Stewart is about to submit PhD thesis specimens and rehousing these in plastic tubs to fit in on a wide range of obscure and neglected components the new compactus storage. The upside of the in the Ordovician faunas of the Girvan and I am co- collection relocation was that funding was provided supervisor of a new student, Tom Challands, along both for the physical process of moving, and transfer with Howard Armstrong and staff at the British of the macrofossil and microfossil collection registers Geological Survey. Tom is based at Durham and is to computer databases. Much previously looking at upper Ordovician successions in Wales to uncatalogued material was curated into the collection investigate biosphere and geosphere dynamics during for the first time. The next phase of the relocation late Ordovician climate change. involves the library, office, conodont processing lab, OWENS, ROBERT M. (UK). I am currently working on and rock-cutting and slide preparation facilities. By the following: 1) Taxonomy and phylogeny of April 2005, the move will have been completed. Ordovician proetid trilobites. 2) (with Richard The volume of paperwork and administrative load Fortey): a silicified trilobite fauna of early Caradoc associated with supervision of the collection age from Pai-khoy, Russia, dominated by relocation and preparation of the new office and lab Lasarchopyge, and including remopleuridids and space at Londonderry did not leave a lot of time for asaphids. 3) A new latest Rawtheyan/early Hirnantian research during 2004, and it is surprising what was fauna from the Llangadog area, Carmarthenshire, achieved. Most papers published during the year were Wales, UK, with Mucronaspis mucronata, co-operative projects with Yong-yi Zhen (Australian Brongniartella sp. nov., and abundant bivalves and Museum) and Barry Webby (Macquarie University), principally on Early and Middle Ordovician conodont gastropods. 4) (with Thomas Servais): faunas from New South Wales. A major achievement palaeobiogeography of Llanvirn trilobites from the was publication in March of the Columbia University Huy formation, Condroz Ridge inlier, Belgium. 5) Press book on the Great Ordovician Bio- (with Phil Lane): The type and other species of the diversification Event. A paper (with Dick Glen and cheirurid trilobite Placoparina from the Llanvirn of Ian Stewart) on the deep-water Narooma Terrane of the Welsh Basin, UK. the NSW South Coast is about to be published (early PARIS, FLORENTINE (France). My work on the 2005) in the Australian Journal of Earth Sciences; in Ordovician System focuses on three main aspects: this I document Early and Middle Ordovician Biodiversity of Ordovician chitinozoans and the conodonts in cherts in colour. Finally, I returned to possible causes of the fluctuating biodiversity. Late research on trimerellide brachiopods, writing a paper Ordovician glacial events and their impact on the with Tony Wright (Wollongong University) faunas and plankton. Sea-level variations during the describing an Early Silurian species of Trimerella Ordovician in northern Gondwana regions. (to appear in Proceedings of the Linnean Society of The first topic is the continuation of the investigations NSW, also in February 2005). The latter paper will I carried out during IGCP 410. This will be a also figure in an assessment of the Late Ordovician to contribution to IGCP 503, and includes collaborations Silurian record of trimerellide brachiopods in Eastern with other chitinozoan experts over the world. Australia, which I am presently working on for The second project is developed within the ECLIPSE presentation at the 5th International Brachiopod program, granted by the French CNRS. It includes Congress later in the year. join investigations by sedimentologists, PODHALAŃSKA, TERESA (Poland). I am actively palaeontologists, geochemists... on Upper Ordovician working on biostratigraphy, graptolites, trace fossils, sections in the Anti-Atlas, Morocco (January 2005), facies, microfacies and chemostratigraphy related to Algeria (2004 and 2005), Libya, Turkey. The main eustatic changes and paleogeography in the Late goal is to depict the timing and the effects of the Ordovician and Early Silurian in Poland. Recently I glaciation close to the Late Ordovician southern pole. deal with the interpretation of the oxygen and carbon The third project is part of a larger program, which isotope data from the Ordovician/Silurian boundary in ultimate goal is to document the Early Palaeozoic Poland. eustatic curve. POPOV, LEONID (UK). Currently I continue my work PERCIVAL, IAN (Australia). I had a difficult year on the Upper Ordovician brachiopods and dealing with impending relocation of his work office

19 ORDOVICIAN NEWS Nº 22 biostratigraphy of Kazakhstan and Uzbekistan, Lower Nevada. The shift precedes the well known to Middle Ordovician brachiopods of Iran. Guttenberg carbon isotope excursion that we have REPETSKI, JOHN E. (USA). I am working chiefly on found higher up in the Copenhagen Formation (just biostratigraphy, CAI, biogeography, and systematics beneath the Eureka Quartzite - Saltzman and Young, of Ordovician and Cambrian conodont faunas, with 2005). Work underway will seek to carry the shift some work on other phosphatic problematica and into the Appalachian Basin and compare it with the some faunas of other ages. In the eastern U.S., I am evidence for the timing of Taconic tectonism. Other preparing Ordovician and Devonian thermal links will be explored with Ordovician superplume maturation (CAI and %Ro) maps for several oil- and events and sea level changes during this time period. gas-producing states (with various good colleagues); I also remain involved in several projects having to do studying Late Cambrian through Ibexian shelf to slope with carbon isotope chemostratigraphy in several faunas across the central Appalachians (with J. Taylor, parts of the Ordovician column. With Bill Ausich and and D. Brezinski); trying to unravel the history of the Seth Young, we are looking at organic matter carbon Hamburg “klippe” terrane in E. Penna. (w/Bob Ganis isotopes in the Ellis Bay Formation on Anticosti and J. Taylor); and age-dating metamorphosed Island to test the ‘weathering’ versus ‘productivity’ sedimentary units in Vermont and in the Great Smoky models for the well-known large positive excursion in Mountains (Tennessee) to support mapping projects the Hirnantian (La Framboise reef member). With there. I am still working on Cambrian-Ordovician Stig Bergstrom, investigation of the Hirnantian faunas in western US (w/J. Taylor, J. Loch, R. excursion in Missouri is proceeding well, and with Ethington, R. Ripperdan, and P. Myrow), Sonora, student Seth Young we continue to study the Mexico, and southwestern US (w/A. Harris), and paleoceanographic and chemostratigraphic Alaska (w/several colleagues). I continue providing significance of the Guttenberg (Chatfieldian) carbon age-dating support for projects in the U.S. isotope excursion in carbonates and organic matter in Midcontinent, Alaska, and elsewhere. Finally, I am the Appalachian Basin and Oklahoma (collaboration working on several taxonomic projects, mostly on with Steve Leslie, Dan Goldman). Upper Cambrian to Middle Ordovician conodonts, but SÁNCHEZ, TERESA M. (Argentina). I continue my also on some [other] fish, larval arthropods, and some work on Ordovician bivalves and rostroconchs from phosphatized embryos, mostly with various western Argentina. With J.L. Benedetto, N. Cech, B. colleagues. Waisfeld, M. Carrera and other researchers and ROHR, DAVID M. (USA). I am currently working with doctoral/postdoctoral students of the CIPAL, Centro Ordovician and Silurian gastropods from Alaska. de Investigaciones Paleobiologicas (Cordoba Recently published studies are on Ordovician University) we are continuing the study of Ordovician gastropods from Newfoundland and a summary of the radiation in the clastic shelves of western Gondwana, Class co-authored with Jiri Fryda for IGCP Project in particular the northwestern basin of Argentina and No. 410. Bolivia (for information regarding CIPAL activities, RONG, JIAYU (China). I am working on 1) Three publications, projects etc., see our website Palaeozoic mass extinctions and their subsequent www.cipal-unc.com.ar). Currently I am involved in recoveries based on the evidences from South China; organization of the ‘Palaeozoic biota: biogeography 2) Brachiopod survival from the Latest Ordovician and diversity patterns’ symposium, part of the 12th mass extinction; 3) The Early-Middle Ordovician Gondwana Congress, Mendoza, November 6-11, brachiopod radiation. 2005. ROZHNOV, SERGEI V. (Russia). I’m actively working SENNIKOV, NIKOLAY V. (Russia). I´m actively on different aspects of the Early Paleozoic working on Ordovician lithology, stratigraphy echinoderms including evolutionary biogeography. The main topic is the Ordovician echinoderms of the (graptolite zonal stratigraphy, conodont zonal Baltic region. stratigraphy, chitinozoans zonal stratigraphy), palaeontology (graptolites, ichnofossils), SACHANSKI, VALERI (Bulgaria). I continue to work on Ordovician, but mainly Silurian and Devonian paleogeography, regional geology (Altai Mountains, graptolites from various locations in Bulgaria and Salair, Kuznetsk Alatau, Tuva and others). Turkey. SERPAGLI, ENRICO AND FERRETTI, ANNALISA (Italy). The activity of the working group of Modena SALTZMAN, M. R. (USA). I’m currently working on the timing and rate of change of a large drop in Sr University is mostly related to conodonts. An isotopes in the Late Ordovician with PhD student Seth extraordinary abundant fauna from the Early Young and Ken Foland at Ohio State. We have Ordovician (Tremadocian) of Montagne Noire is documented this event, which is one of the largest in currently under investigation with Spanish colleagues. the Phanerozoic in terms of magnitude, in a It is the most diversified conodont fauna so far Whiterockian-Mohawkian section of the Antelope recorded from the Early Ordovician of the entire North Gondwana margin. Preliminary results have Valley Limestone-Copenhagen Formations in central provided quite unexpected data. The fauna, in fact,

20 ORDOVICIAN NEWS Nº 22 clearly indicates faunistic interchange with other microscope). Thus, 2005 could be a good year to palaeocontinents and suggests checking the position of return to some basic scientifical work. Montagne Noire in classic palaeogeographic maps. SHEEHAN, PETER M. (USA). I and currently working Either Ashgill pre-Hirnantian or Hirnantian conodont with Mark Harris on comparison of the upper faunas from France (with French colleagues) and from Ordovician and Silurian sequence stratigraphy the Carnic Alps (both Italian and Austrian sides) are between the western United States and Baltica (see under investigation. As regards the Carnic Alps, the discussion by Mark Harris). I am also examining the work will be completed with the study of pre- relative ecological effects among the major extinction Hirnantian Ashgill faunas, recovered either on the events in the Phanerozoic, especially the end Italian side (e.g. Valbertad Section, in cooperation Ordovician extinction. with G. Bagnoli), or other ones on the Austrian side SHERWIN, LAWRENCE (Australia). Geological (with H.P. Schonlaub). In addition, the classic fauna Survey of New South Wales. I am continuing with illustrated in the monographic paper by Serpagli detailed mapping of Ordovician and Silurian (1967) will be enriched by data coming from a recent sediments in the Taralga – Goulburn district of New re-sampling of the type-sections. South Wales. The Ordovician graptolite faunas range Preliminary collecting of one section in Bohemia has from Gisbornian, possibly even late Darriwilian, to recently been made and field work (jointly with early Bolindian. Conodont faunas in associated colleagues from Prague) in search of new sections is cherts are being studied by Ian Percival. This work also scheduled. will be a contribution to Late Ordovician – Early SERVAIS, THOMAS (France). I continue research Silurian tectonics and sedimentation in the Lachlan focused on Ordovician acritarchs, with some Fold Belt. The mapping is being compiled at 1:25 excursions to the Cambrian and Silurian (but also the 000 scale although publication is intended at 1:100 Permian), and some excursions to other fossil groups 000 and 1:250 000. Joint projects with Tatiana (such as carbonate microfossils). Elena Raevskaya (St. Koren’ on Late Ordovician graptolites from central Petersburg, Russia) spent ten months in our west New South Wales are proceeding more slowly. department at Lille (October 2003 to August 2004), Some administrative disruption has resulted from the and we worked together on the Tremadoc/Arenig incorporation of the Geological Survey into a new boundary (with S. Molyneux, BGS, UK) and on some mega organisation, the Department of Primary Late Cambrian diacrodian acritarchs, such as V. Industries. Otherwise the work of mapping the dumontii and related forms. A MSc student (Mathilde Lachlan Fold Belt is unlikely to be affected. Blanchon) worked on a complete revision of the genus SUTTNER, THOMAS J. (Austria). I´m actively Vulcanisphaera, a work that should be prepared for working on Late Ordovician Conodonts. The sampled publication in the next year. The IGCP 410 (The Great section is located in the Himalayas of Northern India Ordovician Biodiversification) book was published, (Spiti area). In addition to the Conodont fauna, but there is still a lot of work to do before we several different fossil taxa are going to be studied. understand the biodiversification of the The new data will be published together with some microphytoplankton. This can now be done with other friends of the Ordovician System hopefully Marco Vecoli (who is now at Lille too) within the within the next two years. (Other research activities: PhytoPal working group. The special issue in the Silurian/ Devonian Conodont biostratigraphy in the Review of Palaeobotany and Palynology, serving as Carnic Alps). proceedings volume of the CIMP meeting of SWEET, WALTER C. (USA). I am completing a September 2002, was published, and the next special graphic correlation of several Argentine Middle issue (based on papers presented at the IPC) is now in Ordovician sections with my much more extensive progress (I am guest-editing this together with Marco). North American Composite Standard section. 2004 was an (extremely) busy year with the Argentine data have been supplied by Albanesi. organisation of a series of conferences. Scheduling the Preliminary results indicate close correlation is CIMP session on Lower Palaeozoic at the IPC at possible. Two major papers are in press -- both should Granada (early July) took some time. The organisation appear in 2005, but don't hold your breath! of the new IGCP n° 503 (Ordovician Palaeogeography TIMOKHIN, ALEXANDER (Russia). The area of my and Palaeoclimate) and its official opening meeting at interests includes: paleontology (trilobites), Erlangen, Germany (early September) much more stratigraphy Siberian Platform. (http://www.pal.uni-erlangen.de/IGCP503/). Finally, TOLMACHEVA, TATIANA (Russia). I continue my the last part of the year was a disaster period with the stratigraphical and taxonomical studies on the Lower organisation of the 48th Annual Meeting of the and Middle Ordovician conodonts from the East Palaeontological Association (mid December), and the Baltic (some of them with Anita Lofgren) and associated PhytoPal workshop (with Gary Mullins). Kazakhstan. This year my studies were mainly All these events were highly successul but took a lot focused on the Lower Ordovician cold seep faunal of time for administration (and less work on the assemblages from Central Kazakhstan in conjunction with Lars Holmer, Jan-Ove Ebbestad and Asa Frisk

21 ORDOVICIAN NEWS Nº 22 and my colleagues from Kazakhstan and Moscow (sedimentology, UlB), Alain Herbosch geological institutes (Olga Nikitina, Aleksei (sedimentology, UlB), Oliver Lehnert (conodonts and Ryazanthev and Kirill Degtyarev). Some small joint isotopes, Lille) and Jacques Verniers (UGent). studies on the Ordovician stratigraphy and conodonts Furthermore, chitinozoan study of the Upper of Siberia, Severnaya Zemlia and Svalbard (with Ordovician of the Fauquez area (Brabant Massif, colleagues from Uppsala, Moscow and St. Petersburg) Belgium) allowed accurate dating by correlation with are also going on. the U.K. sections (work of Thijs Vandenbroucke). TROTTER, JULIE (Australia). My PhD research at Marco Vecoli (Italy). My research activity is centered RSES will draw to a close within the year. The aims on Palaeozoic palynology (acritarchs, chitinozoans, were to better characterise the geochemistry of and miospores). Applications range from stratigraphy, conodont apatite, with a particular focus on in-situ palaeogeographical and geodynamical reconstructions techniques including laser ablation ICPMS (elemental to palaeoenvironmental and palaeoecological ratios) and MC-ICPMS (Sr isotopes), and ion analyses, studies of global changes, and evolution of microprobe analysis using SHRIMP II (oxygen life. isotopes). Negative TIMS investigations into the In October, 2004 I have been appointed “Chargè de potential for oxygen isotope analysis of PO3 are also Recherche” at the French CNRS, so I am finally being pursued. TEM analyses in particular have enjoying a permanent position in a research provided new information on the porosity and institution. ultrastructure of conodont tissues. Collectively, these The job-searching job during 2004 took most of my data are providing new insights into the composition, time, but I was nonetheless able to dedicate some physical structure, and integrity of conodont apatite “spare time” between one interview and the other, to and consequently their potential as geochemical research as well as some consulting jobs. tracers for palaeoenvironmental studies. This research I have been studying an interesting palynological has primarily focused on Ordovician and Early assemblage from the Saudi Arabian Llanvirn, which Silurian conodont faunas. Several publications comprises acritarchs, chitinozoans, and cryptospores. covering the initial laser and TEM work are currently This work was done in collaboration with Alain Le in preparation. Hérissé (CNRS Brest) and Monsour Al-Ruwaili VANDENBROUCKE, THIJS (Belgium). During the last (Saudi Aramco, Dahran); we presented a talk at the year, I have been working on the chitinozoan International Palynological Congress in Granada, assemblages from the new GSSP for the base of the Spain, and a first publication is in progress about that. Hirnantian in Wangjiawan, China (short note in During the first part of 2004 I also collaborated with collaboration with Chen Xu and Jacques Verniers on Alain Le Hérissé for a consulting job committed by the results is available online through the ISOS the company: Gas de France for the biostratigraphic discussion forum, and in press as well) and on those dating of Palaeozoic clastic sequences in Algeria. from the Scottish GSSP candidate for the base of the From March to August 2004 I was postdoc in Lille, second stage of the Upper Ordovician Series, Hartfell France; as I said, I used most of this time for job- applications, but I also worked together with Oliver Score (proposal by Zalasiewicz et al., also online on Lehnert (Univ. of Erlangen, Germany) on the the above mentioned site). I also kept studying the problem of the causes of the “Great Ordovician chitinozoans from several Upper Ordovician key Biodiversification Event”. We approached this study sections in the UK, amongst others resulting in good mostly in relation with the question of the data from the Cardigan-Fishguard area (Wales) and significance and interpretation of the record of the Cross Fell Inlier (type Pusgillian in Northern acritarch diversity and abundance in terms of oceanic England). This will be continued during the coming primary production. A paper on the subject (also in year (work in progress on e.g. the British Whitland, collaboration with Thomas Servais, CNRS Lille) is Rhayadar area, Dob’s Linn, Cwm Hirnant and Onny currently in progress, and we will present a talk at the Valley/type Caradoc sections), which should be the next meeting of the Europen Geoscience Union in fourth and final year of my PhD project. Vienna next April. VANMEIRHAEGHE, JAN (Belgium). I am continuing Currently, I am working on the revision of the study of the Ordovician chitinozoans from the palynological material from the Sud Alpine basement, Condroz Inlier and the Brabant Massif in Belgium. Italian Alps in order to try to elucidate the This year, I have studied in the central part of the depositional age of the metamorphic basement in the Condroz Inlier the lithostratigraphy and chitinozoans Eastern Alps. This work is done in collaboration with of the middle Ordovician at Dave and the Caradoc and Prof. Iginio Dieni and Prof. Francesco Sassi of the pre-Hirnantian Ashgill at Faulx-les Tombes. I am also University of Padova, Italy. continuing the work on the Hirnantian (?) deposits Since October, I have been occupied with the setting (with two conglomeratic levels) of the western part of up of a renovated palynological laboratory in Lille, the Condroz Inlier, at Sart-Eustache, in collaboration since the existing laboratories were not operational with Johan Yans (isotopes, FtPMons), Alain Préat anymore. Now all the necessary works have been

22 ORDOVICIAN NEWS Nº 22 completed and brand new equipment is in place; the VIIRA, VIIVE (Estonia). I am actively working with lab is fully operational and we expect a good flux of Lower and Middle Ordovician conodonts from palynological preparations to go through. several sections of Estonia. For the next future, I am going to start a new project VINN, OLEV (Estonia). My major research interest is based chiefly on cryptospores and miospores, aiming the structure and affinities of Ordovician tubicolous at the study of the process of the invasion of emerged problematic fossils, especially cornulitids and lands by the earliest plants during Ordovician through tentaculitids. I have cooperation with Dr. Harry Devonian times (“terrestrialization”), and the Mutvei from Naturhistoriska Riksmuseet in associated global changes. An integrated Stockholm for studying the shell microstructures of palynological – sedimentological – geoche-mical cornulitids and early annelids. I also continue my approach will be utilized. During the last part of 2004 studies of ontogeny and evolution of clitambonitidine I have been working on gathering suitable material for brachiopods. In addtion I have examined the 'worm' this project. I have come into possession of about 300 borings in the brachiopod shells of Middle samples from several subsurface sections in North Ordovician age from the Baltic region. The earliest Africa; in this, I was helped by Florentin Paris (CNRS borings in the brachiopod shells are discovered from Rennes) and Dominique Massa (former geologist at the Arenig (Volkhov Stage) of Baltica. Total; Paris). At the moment, I am slowly starting the VYHLASOVÁ, ZDEŇKA (BRABCOVÁ) (Czech Rep.). I study of a couple of late Silurian – early Devonian continue working on the macro-morphological and sections in Algeria, in collaboration with Florentin micromorphological anylysis of the Palaeozoic Paris. Field work and further core-sample collecting conulariids. The main subject of my study are from North American sections is being organized with conulariids from the Barrandian area (Czech Paul Strother (Weston observatory, Boston, U.S.A.). Republic) with stratigraphical range from Arenigian Together with Enrique Diaz-Martinez (principal to Pragian and from the Upper Silesian Basin with the Investigator; Univ. of Madrid, Spain), we have stratigraphical range Viséan to Namurian (project of submitted, to the evaluation of the Europen Grant Agency of Czech Republic). I also succeeded Commission in the framework of the 6th framework to compare Bohemian and Morrocan Ordovician programme, a research proposal entitled: Sedimentary conulariid faunas, studying material collected by record of climate changes in the Palaeozoic of the Peter Van Roy in Morrocan. 5 identical species Central Andes. (Pseudoconularia grandissima, Exoconularia I am also a partner in two large projects focused on the consobrina, Conularia (Archaeoconularia) insignis, late Ordovician glaciation: the ECLIPSE project, Metaconularia imperialis, Anaconularia anomala) funded by the French CNRS (project leader Jean were identified, indicating the close François Ghienne, CNRS Strasbourg, France), and a palaeogeographical position of North Gondwana further project led by Enrique Villas and Javier Alvaro (Morroco) and Perunica (Bohemia). I struggle to (both from the University of Zaragoza, Spain). evaluate macro- and micro- characteristics of Last but not least, all my palynological activities are conulariids exoskeletons and use them better for the relevant and contribute to the “Phytopal project” , systematics of this group. I also correlate some taxons aiming at investigating the relationships between with their equivalents from Palaeozoic of France, acritarch evolution and diversity, and palaeoclimate Belgium and Sweden. during the Palaeozoic (see at WANG, XIOAFENG (China). I am continuing our joint http://www.le.ac.uk/geology/glm2/phytopal.html). research on the Lower/ Middle Ordovician boundary I participated to the following conferences : with Svend Stouge, B.-D. Erdtmann and other 5ème Seminaire de Geologie Petroliere, 18-20 January colleagues. Based on detailed study of the 2004, Centre de recherche et Développement, Avenue Huanghuachang section, Chenjiahe section and other du Premier Novembre – 35000, Boumerdès Algérie. relevant sections the Huanghuachang section near 11th International Palynological Congress, 4-9 July Yichang, Hubei, China, was proposed as GSSP for 2004, Granada, Spain. the base of the Middle Ordovician Series. The IGCP N° 503 meeting: International Symposium on proposal is submitted to the ISOS and posted on the Early Palaeozoic Palaeogeography and Palaeoclimate; web site for discussion. Another project I am dealing Erlangen, Germany; September 1-3. with is the Tremadocian graptolites. I visited the Second PhytoPal meeting and workshop; Universite Technical University of Berlin for two months under Lille 1,Villeneuve d’Ascq, 15-17 December 2004. the support of the DAAD and studied all graptolite 48th Palaeontological Association Annual Meeting. specimens collected by B.-D.Erdtmann. A paper on Villeneuve d’Ascq Campus, University of Lille1, the reclassification and evolution of rhabdinoporids France; December 17-20. will be completed next year. VERNIERS, JACQUES (Belgium). I´m actively working WEBBY, BARRY (Australia). Completed two large on the Chitinozoans around the Ordovician-Silurian stints of editing work over the past twelve months. bounadry in Dob's Linn and Lonstorp (Sweden). First, there was the task as the lead editor and contributor to six chapters of the 494-page book,

23 ORDOVICIAN NEWS Nº 22 entitled “The Great Ordovician Biodiversification sedimentology and trace fossils of the Ordovician Event” that was finally published by Columbia limestones of Sweden. We completed further University Press (New York) in March 2004. The book fieldwork in Jämtland and Öland during summer included 35 chapters contributed by 96 authors from 2004. L.C. and I attended the Early Palaeozoic all parts of the world. Most of the contributors were Palaeogeography and Palaeoclimate Symposium and members of the original IGCP 410 global clade-team IGCP 503 Opening Meeting in Erlangen in work programme that had continued to compile September 2004. I gave an oral presentation on Ordovician biodiversity data since 1998. Also, a final Middle Ordovician Thalassinoides from Jämtland at report (with Florentin Paris and Mary Droser) of the the 48th Annual Meeting of The Palaeontological IGCP 410 project (1997-2002), has been prepared that Association in Lille in December 2004. outlines the major achievements, and published in WILSON, MARK A. (USA). I continue to work on Episodes in September 2004. Overall IGCP 410 Ordovician bioerosion, concentrating especially on workers contributed over 1,000 publications and these the remarkable rise in the diversity of borings during are now, thanks to Peter Cockle, listed (and available this period. Tim Palmer and I have referred to this for download in pdf format) on the website: event as the "Ordovician Bioerosion Revolution". I http://www.es.mq.edu.au/mucep/igcp410.htm . maintain a bibliography of bioerosion at: In the second editing job (with David Bruton, Gabriella http://www.wooster.edu/geology/Bioerosion/Bioeros Mangano, Luis Buatois and Michael Englebretsen) ten on.html. Tim Palmer, Paul Taylor and I also continue of the papers read in session 18 (Trace Fossils) of the our work on Ordovician encrusters, hardgrounds and First International Palaeontological Congress at other aspects of Calcite Sea conditions. We are Macquarie University in 2002 were reviewed and interested in comparing our observations of these assembled in a volume entitled “Trace fossils in Ordovician phenomena to those of the Jurassic, which evolutionary palaeoecology” of Fossils and Strata (no. was also a Calcite Sea time. 51). This publication has now been published. A I am also the Program Coordinator for the description of the Middle Cambrian trace fossils of the Paleontological Society. I would love to help Ord Basin, Western Australia was also been published organize any topical sessions for the annual GSA in 2004. This is part of a joint work with John Laurie meetings which are based on Ordovician (trilobites) and Pierre Kruse (other body fossils), and paleontology or biostratigraphy. comprises a Memoir of the Australasian Association of WITZKE, BRIAN J. (USA). The complex Upper Palaeontologists. Ordovician stratigraphy in the Iowa area is currently In addition, work is continuing on a number of other under study. The succession is punctuated by projects, in particular a synthesis of the Cambro- widespread submarine sediment-starved surfaces Ordovician geological development of western New (many seem as pyritic and phosphatic impregnated South Wales with Ian Percival, Kingsley Mills, Tim hardgrounds). These surfaces likely relate to episodic Sharpe, Zhen Yongyi and Pierre Kruse, and the circulatory changes in the oceanic-epeiric sea assembly of a paper describing additional Late systems. Recent Ordovician discoveries include Ordovician trilobites from central New South Wales additional localities with abundant conodonts in the (with Greg Edgecombe). The other major project St. Peter Sandstone, notably near Elk Point, South involves contributions to, and coordinating work, on Dakota, and Decorah, Iowa. the revision of the Treatise on Invertebrate The September 23-25, 2005, Field Trip Conference of Paleontology, Part E, Porifera revised volume 4 the Great Lakes Section of the SEPM (Sedimentary (hypercalcified sponges). Work on this Treatise project Geology) will be held in Decorah, Iowa. A primary is now advancing rapidly, and hopefully in the next focus of the trip will be Upper Ordovician year or two, with the active support of leading stratigraphy and sedimentation in the classic Upper stromatoporoid, archaeocyath, chaetetid, and Mississippi Valley (UMV) area. I will assist the sphinctozoan/inozoan workers, we will able to organizer, Greg Ludvigson (Iowa Geol. Survey), for assemble and get thie volume published as the last in this trip. A guidebook is planned, and we encourage the series of Treatise volumes devoted to all the groups additional submissions. Please contact me if you of fossil sponges. would like to submit something on the Ordovician WICANDER, REED (USA). I am contnuing research geology of the UMV area. on Ordovician acritarchs, presently from North YOCHELSON, ELLIS L. (USA). Partially retired from America and Australia. Geoffrey Playford and I retirement of 20 years ago is doing little on the submitted a manuscript on the microphytoplankton of Ordovician, but still interested in gastropods of that age. the Upper Ordovician Sylvan Shale, Oklahoma, YOUNG, GRAHAM (Canada). I’m continuing to U.S.A. Li Jun and I submitted a manuscript on Upper work on Paleozoic paleoecology, and on coral Ordovician acritarchs from the Tarim Basin, China. diversity and distribution before and after the Late WHEELEY, JAMES R. (UK). I am in the final year of Ordovician extinction event. Collaborations with my PhD with Lesley Cherns and Paul Wright (Cardiff Bob Elias examine diversity, community structure, University) researching the taphonomy, diagenesis,

24 ORDOVICIAN NEWS Nº 22 and morphology of coral faunas. A large field project from Nanjing Univesity found the diverse early to with Bob, Dave Rudkin, Godfrey Nowlan, and others middle Ordovician graptolite fauna in 1980s turned assesses paleoenvironments around a unique Late out to be in vain, as the sections have been covered by Ordovician-Early Silurian archipelago in the Churchill dense jungles that grew up in recent years. (2) area, northern Manitoba. Field research in this area is Cladistic study on the origins of the three major nearly complete; current laboratory research is groups of Ordovician and Silurian graptolites: concentrating on some of the important taxonomic dichograptids, diplograptids and monograptids, based groups (corals, trilobites, and conodonts). Successful mainly on data from South China (with Prof. Chen 2004 fieldwork on unusual Ordovician-Silurian Xu, Feng Hongzhen, Dr. Fan Juanxuan and Prof. R.A. sections in central Manitoba is now being followed up Fortey etc.). The study on the origin and early in an M.Sc. student project by Brandy Chapman, who evolution of biserial graptolites has already produced will be considering stratigraphy, paleoenvironments, a paper for “Palaeontology”. At moment, Prof.Chen and paleoecology. Xu, Dr. Fan Junxuan and I are identifying and coding ZHAN, RENBIN (China). I am currently working on the characters for the analysis of early monograptids. Ordovician brachiopods of South China. Several Early We hope to run the PAUP analysis in the summer of to Mid Ordovician brachiopod faunas from different 2005. The cladistic study on the origin of dichograptids localities on Yangtze Platform (South China will be collaborated with Prof.Feng Hongzhen of Paleoplate) are being studied systematically and Nanjing University who has recently discovered in synecologically. My major interest is the brachiopod Hunan Province of China an important section yielding biodiversification of South China during Ordovician well-preserved late Tremadocian graptolites. These including the Ordovician radiation and its related works are supported by a grant from the Natural Science problems. I am trying to discuss in detail the Foundation of China. (3) I am supposed to be macroevolution of Early to Mid Ordovician responsible for the pre-Conference field trip of 2007 brachiopod α-diversity, β-diversity and γ-diversity of Nanjing Conference on Orodvician and Silurian South China. Besides, a bilateral collaboration Systems, and the concerned work is in progress. between Prof. Jisuo Jin at University of Western ZHEN, YONG YI (Australia). I am working on the Ontario (Canada) and me are being conducted on the Ordovician conodonts from NSW and China in 2004 in “Comparative study of Ordovician brachiopod association with Dr. Ian Percival form The Geological diversity trends between South China and North Survey of New South Wales and Dr. Jianbo Liu from America and their paleoenvironmental and Peking University. Two manuscripts describing the paleobiogeographic significance”. Several joint papers Early Ordovician Honghuayuan faunas from Guizhou are to be published in 2005. are currently in press or under reviews. A third ZHANG, YUANDONG (China). I am working on the manuscript is also nearly ready for submission. following aspects: (1) the Ordovician Bioradiation— ZUYKOV, MICHAEL (Russia). I continue to work on response of graptolites in South China. This work has Upper Ordovician brachiopods of Baltoscandia started since 2000, and in 2004 the work is with colleagues from Estonia, Denmark, Sweden and concentrated on the evolutioin of graptolite diversity. United Kingdom. My colleagues and I tried to identify the presumably different patterns of graptolites during the Ordovician Radiation in shallow-water Yangtze Platform and RECENT ORDOVICIAN PUBLICATIONS relatively deep-water Jiangnan Slope, and have obtained the primary result that is expected to be Achab, A., Paris, F., Nõlvak, J. and Asselin, E. published as a section in the special volume edited by 2004. Patterns and Driving Factors of the Chitinozoan Rong Jiayu et al. 2005; We are also comparing the Diversification During the Ordovician. International different response of planktic graptolite and benthic Symposium on Early Palaeozoic Palaeogeography brachiopods and trilobites in Early-Middle and Palaeoclimate, Erlangen, Germany. Abstracts and Ordovician, and the work is still in progress. In 2004, Field Guides, Erlangeer Geol. Abh. Sonderband 5: my colleagues and I collected in details the Miaopo 17. Formation (Uppermost Darriwilian-Caradoc) in Adrain, J.M., Lee, D.C., S.R. Westrop, S.R., Yichang area of South China, which yields rather Chatterton, B.D.E., and Landing, E. 2003. diverse 3-dim pyritic graptolites and abundant Classification of the trilobite subfamilies brachiopods, trilobites, echinoderms and bryozoans Hystricurinae and Hintzecurinae subfam. nov., with etc. By this work, we are able to identify precisely the new genera from the Lower Ordovician (Ibexian) of Mid/Upper Ordovician boundary in Yangtze Platform Idaho and Utah. Memoirs of the Queensland and thus make available the complete early-Middle Museum, 41: 55–105. Ordovician graptolite succession that can be referred Adrain, J.M., Edgecombe, G.D., Fortey, R.A., by those specialists working on shelly clades as a left- Hammer, Ø., Laurie, J,R. McCormick, T., Owen, hand standard. Another field excursion to Wuning of A.W., Waisfeld, B, Webby, B.D., Westrop, S. R. Jiangxi in June, where Dr. Ni Yunan and the flock and Zhou Zhi-Yi. 2004. Trilobites. pp. 231-254, In:

25 ORDOVICIAN NEWS Nº 22

Webby, B. D., Droser, M. L. and Paris, F. (eds) The Meeting on the Working Group on the Ordovician Great Ordovician Biodiversification Event. Columbia Geology of Baltoscandia May 13-18,2004, Tallinn University Press, New York. 484 pp. and Tartu, Estonia:13-14. Ainsaar, L., Meidla, T. and Martma, T. 2004. The Antoshkina, A.I. and Beznosova, T. 2004. New Middle Caradoc Facies and Faunal Turnover in the data on the Ordovician/Silurian boundary deposits of Late Ordovician Baltoscandian palaeobasin. the southern part of the Chernyshev Swell. In: Palaeogeography, Palaeoclimatology, Palaeoecology, N.P.Yushkin (Ed.) Proceedings of the XIV 210: 119-133. Geological Symposium of the Komi Republik. Vol. Albanesi, G.L. and Bergström, S.M.. 2004. III. Syktyvkar, Geoprint:215-218 [in Russian]. Conodonts: Lower to Middle Ordovician record. In: Armstrong, H.A. 2004. Euconodont histology, B.D. Webby, F. Paris, M.L. Droser and I.G. Percival modularity and the development of complexity. (eds.). The Great Ordovician Biodiversification Event. Palaeontological Association Annual Meeting, Columbia University Press. New York: 312-336, tabs. University of Lille. 1-3, figs. 1-4. Armstrong, H.A. (in press). Modes of growth in the Albanesi, G.L. and Bergström, S.M. 2004. The euconodont oral skeleton: implications for bias and Early Ordovician paleobiogeographical position of the completeness in the fossil record. In, Purnell, M. A. Argentine Precordillera as suggested by conodont and Donoghue, P. C. J. (eds) 2005: Conodont biology faunas. 32nd International Geological Congress, and phylogeny - interpreting the fossil record. Florence, Italy. Abstracts, part 2: 213-7. Special Papers in Palaeontology 73. Albanesi, G.L., Carrera, M.G., Cañas, F.L. and Armstrong, H.A. and Brasier, M.D. 2004. Saltzman, M. 2004. Definition of a global boundary Microfossils, 2nd edition. Blackell Scientific stratotype section and point (GSSP) for the base of the Publications. Middle Ordovician Series: The Niquivil section, Armstrong, H.A., Turner, B. R. and Makhlouf, I. Precordillera of San Juan, Argentina. Informe de la M. 2003. Hirnantian glaciation: a high latitude International Subcommission on Ordovician perspective from Palaeo-Tethys. Programme with Stratigraphy (ICS-IUGS), publicación electrónica: Abstracts, EGS-AGU-EUG Joint Assembly 2003. http://seis.natsci.csulb.edu/ordstrat1. Armstrong, H.A., Turner, B. R. and Makhlouf, Albanesi, G.L., Monaldi, C.R. and Ortega, G. 2004. I.M. 2004. Hirnantian glaciation: a high latitude La fauna de conodontes de la Formación Capillas, perspective from Palaeo-Tethys. Programme with Ordovícico de la sierra de Zapla, provincia de Jujuy, Abstracts, IGCP Project 503, Erlangen. Argentina. Reunión anual de comunicaciones de la Armstrong, H. A., Turner, B. R., Makhlouf, I. M., Asociación Paleontológica Argentina, Diamante. Weedon, G. P., Williams, M., Al Smadi, A. and Ameghiniana 41 (4): 5. Abu Salah, A. (in press). Origin, sequence Albanesi, G.L. and Voldman, G.G. 2004. stratigraphy and depositional environment of an Ordovician Paleothermometry of the Argentine Upper Ordovician (Hirnantian) deglacial black shale, Precordillera based on Conodont Color Alteration Jordan. Palaeogeography, Palaeoclimatology, Index. International Symposium on Early Palaeozoic Palaeoecology. Abstracts Palaeogeography and Paleoclimate, Erlanger Armstrong, H. A., Turner, B. R., Makhlouf, I. M., Geologische Abhandlungen, Erlangen, Germany. Williams, M., Al Smadi A. and Abu Salah, A. Abstract: 18. 2004. Sequence stratigraphy and depositional Al-Ruwaili, M., Vecoli, M., and Le Hérissé, A., environment of an Upper Ordovician (Hirnantian), 2004. New record of primitive vegetation in the peri-glacial petroleum source rock. Jordanian middle Ordovician of Saudi Arabia, and originality of Geologists Association International Conference, the associated marine microphytoplankton. Abstracts, Amman, Jordan. XI International Palynological Congress, Granada, Asselin, E., Achab, A. and Soufiane, A. 2004. Spain. Polen 14, 163. Stratigraphic Significance of Lower Paleozoic Antoshkina, A.I. 2003. Late Ordovician succession in Assemblages from Eastern Canada. Canadian Journal the Subpolar Urals. In: G.L.Albanesi, M.S.Beresi and of Earth Sciences 41: 489-505. S.M.Peralta (eds.) Ordovician from the Andes, Astini, R.A. 2003. The Ordovician Proto-Andean Proceedings of the 9th International Symposium on the basins. En: Benedetto, J.L. (ed.), Ordovician fossils of Ordovician System. Serie Correlaciуn Geolуgica 17, Argentina. Secretaría de Ciencias y Tecnología, INSUGEO, Tucumбn: 353-355. Universidad Nacional de Córdoba. 1-74. Antoshkina, A.I. 2003. Reef building in the Astini, R.A. and Dávila, F.M. 2004. Ordovician Palaeozoic (as an axample of the northern part of the retroarc foreland and Ocloyic thrust belt development Urals and adjacent areas).Ekaterinburg,Nauka: 303 p. on the western Gondwana margin as a response to the [in Russian]. Precordillera terrane accretion. Tectonics, 23(4), Antoshkina, A.I. 2004. Upper Ordovician in the TC4008, 10.1029/2003TC001620. Chernyshev Swell, Timan-northern Ural region. In: O.Hints and L. Ainsaar (eds.) WOGOGOB-2004 8th

26 ORDOVICIAN NEWS Nº 22

Astini, R.A. and Rapalini, A.E. 2003. "Proterozoic− Palaeoclimate, Erlangen, September 1-3, 2004. Early Paleozoic evolution in western South Abstracts and field guides: 21. America⎯a discussion". Discussion. Tectonophysics, Benedetto, J.L., 2004. The allochthony of the 366: 143-148. Precordillera ten years later (1993-2003): A new Astini, R A., Thomas, W.A. and Yochelson, E.L. paleobiogeographic test of the microcontinental 2004. Salterella in the Argentine Precordillera: an model. Gondwana Research, 7 (4): 1027-1039. Early Cambrian palaeobiogeographic indicator of Bergström, S.M. and Ahlberg, P. 2004. Guide to Laurentian affinity Palaeogeography, Palaeo- some classical Ordovician and Cambrian localities in climatology, Palaeoecology, 213 (1-2): 125-132. the Fagelsang area, Scania, southern Sweden. Elsevier. Erlanger geologische Abhandlungen Sonderband 5: Astini, R.A., Waisfeld, B.G., Toro, B.A. and 81-89. Benedetto, J.L. 2004. El Paleozoico Inferior y medio Bergström, S.M., Huff, W.D., Saltzman, M.R., de la región de Los Colorados, borde occidental de la Kolata, D.R. and Leslie, S. A. 2004. The greatest Cordillera Oriental (provincia de Jujuy), Argentina. volcanic ash falls in the Phanerozoic: Trans-Atlantic Revista de la Asociación Geológica Argentina, 243- relations of the Ordovician Millbrig and Kinnekulle 260. K-bentonites. The Sedimentary Record, 2(4):4-8. Bagnoli, G., Ribecai, C. and Albani, R. 2004. Bergström, S. M., Löfgren, A. and Grahn, Y. 2004. Changes in some acritarch genera across the The stratigraphy of the Upper Ordovician carbonate Volkhov/Kunda boundary on Oeland (Sweden). In: mounds in the subsurface of Gotland. GFF, 126: 289- Munnecke A., Servais T. and Schulbert C. (eds) 296. International Symposium on Early Palaeozoic Bergström S.M., Löfgren, A. and Maletz, J. 2004. Palaeogeography and Palaeoclimate. Erlanger geol. The GSSP of the Second (Upper) Stage of the Lower Abh., Sonderband 5: 20-21 (abs.). Ordovician Series: Diabasbrottet at Hunneberg, Barnes, C.R. 2004. Was there an Ordovician Province of Vastergotland, southwestern Sweden. superplume event? p. 77-80. In: The Great Ordovician Episodes, 27(4):265-272. Biodiversification Event. B.D. Webby, F. Paris, M.L. Beznosova, T. M., Majdl’, T. V., Männik, P., Droser, and I.G. Percival (eds.), Columbia University Martma, T., Lukin, Yu. V. and Pashnin, A. I. Press, New York, 484p. 2004. Ordovician and Silurian boundary in Subpolar Barnes, C.R. 2004. Ordovician oceans and climate. p. Urals: new developments and problems. In Yushkin, 72-76 In: The Great Ordovician Biodiversification N. P. (ed.) Geology and mineral resources of the Event. B.E. Webby, F. Paris, M.L. Droser, and I.G. European north-east of Russia: Materials of the XIV Percival (eds.), Columbia University Press, New Geologycal Congress of Komi Republic. Vol. IV. York, 484p. Geoprint, Syktyvkar: 224-227. [In Russian] Barnes, C.R. 2004. Ordovician paleoceanography. Bourahrouh, A., Paris, F. and Elaouad-Debbaj, Z. 32nd International Geological Congress, Florence, 2004. Biostratigraphy, biodiversity and Italy. Program with Abstracts CD. palaeoenvironments of the chitinozoans and Barnes, C.R., Zhang, S., and Pyle, L.J. 2004. associated palynomorphs from the Upper ordovician Interpreting Laurentian-wide Early Ordovician sea of the Anti-Atlas, Morocco. Review of Palaeobotany level and tectonic events using the pattern of conodont Palynology , 130: 17-40. communities. Joint annual meeting of the Geological Boucot, A.J., Chen Xu and Scotese, C.R., 2004. Association of Canada and Mineralogical Association Phanerozoic Climatic Zones and Paleogeography of Canada, Program with Abstracts CD. with a Consideration of Atmospheric CO2 Levels. Bassett, M.G., Cope, J.C.W., Hancock, J.M. and Paleotological Journal, 2004(2): 3-11. (In Russian Holland, C.H. 2004. Simplifying the stratigraphy of with English abstract). time: Comment. Geology: Online Forum, p. e60. Brett, C.E., Algeo, T.A. and McLaughlin, P.I. Bassett, M.G., Dastanpour, M., Ghobadi Pour, M. 2003. Use of event beds and sedimentary cycles in and Popov, P.E. 2004. Early Ordovician faunas from high-resolution stratigraphic correlation of the Tabas and Damghan regions, Iran and their lithologically repetitive successions: the Upper biogeographical significance. The Eighth Meeting of Ordovician Kope Formation of northern Kentucky the Working Group on the Ordovician Stratigraphy of and southern Ohio. In Harries, P., Geary, D. (eds.), Baltoscandia (WOGOGOB), Tallinn and Tartu, High-resolution stratigraphic approaches to Estonia, 13th -18th May 2004, Abstracts: 16-17. paleobiology, Kluwer Academic/Plenum Press. Bassett, M.G., Dastanpour, M., Ghobadi Pour, M. Brett, C.E. and McLaughlin, P.I. 2004. EO- and Popov, L. E. 2004. Biogeographical assessment Ulrichian to Neo-Ulrichian views: the renaissance of of the Early to Mid Ordovician benthic faunas of “layer-cake stratigraphy”. Abstracts with programs, north-central Iran. Erlangen Geologische Geological Society of America national meeting Abdhanglungen, Sonderband 5, International 2004. Symposium on Early Palaeozoic palaeogeography and Brett, C.E., Mclaughlin, P.M., Baird, G.C., and Cornell, S.R. 2004. Comparative sequence

27 ORDOVICIAN NEWS Nº 22 stratigraphy of the Upper Ordovician (Turinian- geologische Abhandlungen, Sonderband 5: 113-131. Edenian) of the Trenton shelf (New York-Ontario) and (http://www.pal.uni-erlangen.de/IGCP503/page/ Lexington Platform (Kentucky-Ohio) successions: Gotland-I.pdf) implications for eustasy and local tectonism in eastern Calner, M., Jeppsson, L. and Munnecke, A. 2004. Laurentia. Palaeogeography, Paleoclimatology, The Silurian of Gotland - Part II: Guide to the IGCP Palaeoecology, v. 210, p. 295-329. 503 field meeting 2004. Erlanger geologische Brezinski, D.K., Repetski, J.E., and Cecil, C.B. Abhandlungen, Sonderband 5: 133-151. 2004. Stops 9, 10, 12, and 13, p. 110-112 and 116- (http://www.pal.uni-erlangen.de/IGCP503/page/ 123. In, Cecil, C.B., Brezinski, D.K., and Dulong F. Gotland-II.pdf) (trip leaders), with stop contributions by Blake, B., Carmona, N.B., Buatois, L.A. and Mángano, M.G. Eble, C., Fedorko, N., Grady, W., Repetski, J., Skema, 2004. The trace fossil record of burrowing decapod V., and Stamm, R..: The Paleozoic record of changes crustaceans: evaluating evolutionary radiations and in global climate and sea level: central Appalachian behavioural convergence. In: Webby, B.D., Mángano, basin. In, Geology of the National Capital Region – M.G. and Buatois, L.A. (Eds.), Trace Fossils in Field Trip Guidebook, Southworth, Scott, and Burton, evolutionary palaeoecology. Fossils and Strata, 51: William (Eds.). U.S. Geological Survey, Circular 141-153. 1264, 1-298. Carrera, M.G. and Cech, N. 2003. Taxonomic Brussa, E.D. and Toro, B.A. 2004. Las familias turnover and community replacement in the Early Glossograptidae, Dicranograptidae y Orthograptidae Ordovician limestones of the Argentine Precordillera. (Graptolithina) en el Ordovícico Superior de la En: Albanesi G., Beresi M. y Peralta, S. (eds.) 9th. Formación Empozada, provincia de Mendoza, International Symposium on the Ordovician System. Argentina. Ameghiniana, 41 (2): 129-142. Ordovician from the Andean, INSUGEO, serie de Buatois, L.A. and Mángano, M.G. 2003. Correlación Geológica, 17: 279-283. Sedimentary facies and depositional evolution of the Carrera, M.G. and Rigby, J.K. 2004. Sponges. Upper Cambrian to Lower Ordovician Santa Rosita “The Great Ordovician Biodiversification Event" Formation in northwest Argentina. Journal of South Edited By Barry D. Webby, Mary L. Droser, American Earth Sciences 16: 343-363. Florentin Paris And Ian G. Percival. Columbia Buatois, L.A., Moya, M.C., Mángano, M.G. and University Press. Pp. 102-111. Malanca, S. 2003. Paleoenvironmental and sequence Chen Xu, Rong Jia-yu, Fan Juan-xuan, Zhan Ren- stratigraphic framework of the Cambrian-Ordovician bin, Mitchell, C.E., Harper, D.A.T., Melchin, M.J. transition in the Angosto del Moreno area, northwest and Wang Xiao-feng. 2004. A final report on the Argentina. Proceedings of the 9th International GSSP candidate of the Hirnantian Stage, 23 s. Symposium on the Ordovician System, San Juan: 397- International Subcommission on Ordovician 401. Stratigraphy, www.ordovician.cn. Budil, P. 2004. Pravdepodobne nejstarsi dochovany Chen Xu, Rong Jia-yu, Li Yue and Boucot, A.J. popsany exemplar trilobita z uzemi Ceske republiky 2004. Facies patterns and geography of the Yangtze (Probably the oldest described trilobite specimen from region, South China, through the Ordovician and the territory of the Czech Republic, in Czech); Cesky Silurian transition. Palaeogeography, Palaeo- kras, 30: 63. climatology, Palaeoecology, 204(2004): 353-372. Budil, P. and Bruthansová, J. 2004. Zmeny ve Cherns, L., Rohr, D.M. and Fryda, J. 2004. zpusobu exuviace trilobitu behem ontogeneze (in Ordovician symmetrical univalved molluscs Czech). - 5. paleontologická konferencia, Zborník (Tryblidiida and Bellerophontida), 179-183. In: The abstraktov, Bratislava, 20-21. Great Ordovician Biodiversification Event, B. D. Budil, P. and Bruthansová, J. 2005. Moulting in Webby, F. Paris, M. L. Droser, and I. G. Percival Ordovician Dalmanitacean and Acastacean trilobites (eds), Columbia University Press, New York, 408 pp. of the Prague Basin. Preliminary observations; Cherns, L., Wheeley, J.R. and Karis, L. 2004. Geologica Acta, (in print). Tunnelling trilobites in Middle Ordovician Budil, P. and Fortey, R. 2004. Rediscovery of Thalassinoides. The Palaeontological Association probably the oldest described trilobite specimen from Newletter, 57, 116. the Barrandian area (Czech Republic); Trilobite Choi, D.K., Chough, S.K., Fitches, W.R., Kwon, Papers 16: 24-26. 2004. Y.K., Lee, S.-B., Kang, I., Woo, J., Shinn, Y.J., Budil, P. and Kolář, P. 2004. Phacops (Paciphacops) Lee, H.S. and Sohn, J.W. 2004. Filed Trip Guide for chlupaci sp. n. from the Lower Devonian (Zlíchovian Ninth International Conference of the Cambrian Stage Stage) of the Prague Basin. and#8211; Jour. Czech. Subdivision Working Group. Cambrian in the Land of Geol. Soc. 49: 3-4. Morning Calm. The Paleontological Society of Korea, Calner, M., Jeppsson, L. and Munnecke, A. 2004. Special Publication 8: 1-75. The Silurian of Gotland - Part I: Review of the Choi, D.K., Chough, S.K., Kwon, I.K., Lee, S.-B., stratigraphic framework, event stratigraphy, and stable Woo, J., Kang, I., Lee, H.S., Lee, S.M., Sohn, J.W., carbon and oxygen isotope development. Erlanger Shinn Y.J. and Lee, D.J. 2004. Taebaek Group

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(Cambrian-Ordovician) in the Seokgaejae section, Dobretsov, N.L., Shumny, V.K. and Kanygin, A.V. Taebaeksan Basin: a refined lower Paleozoic 2001. The problems of origin and evolution of life stratigraphy in Korea. Geosciences Journal, 8: 125- //Vestnik of All-Union Society of genetics and 151. selectors, no. 17, August pp. 2-6 (in Russian). Cocks, L.R.M. and Cooper, R.A. 2004. Late Dong, Xiping, Repetski, J.E., and Bergström, S.M. Ordovician (Hirnantian) shelly fossils from New 2004. Conodont biostratigraphy of the Middle Zealand and their significance. New Zealand Journal Cambrian through Lowermost Ordovician in Hunan, of Geology and Geophysics 47: 71-80. South China. Acta Geologica Sinica, 78(6), 1185- Cocks, L.R.M. and Torsvik, T.H. 2004. Major 1206. terranes in the Ordovician. Pp. 61-67 in Webby, B.D., Dorning, K.J. 2004. Acritarch and chitinozoan et al. (eds) The Great Ordovician biodioversification evidence of Palaeozoic marine productivity. event. Columbia University Press, New York. Abstracts, XI International Palynological Congress, Cooper, R.A. 2004. Measures of diversity. Pp 52-57. Granada, Spain. Polen, 14: 137-138. ISSN: 1135- In Webby, B.D., Droser, M.L., and Paris, F. (eds) The 8408. Great Ordovician biodiversification event. Columbia Dorning, K.J. 2004. Acritarchs. In: Selley, R.C., University Press, 484 pp. Cocks, L.R.M. and Plimer, I.R. (eds.) Encyclopedia Cooper, R.A. (ed.). 2004. The New Zealand of Geology, Elsevier, Oxford, vol. 3: 418-427. ISBN: Geological Timescale. Institute of Geological and 0126363803 Nuclear Sciences Monograph 22, 284 pp. Egenhoff, S.O., Maletz, J. and Erdtmann, B.-D. Cooper, R.A., Maletz, J., Taylor, L. and 2004. Lower Ordovician graptolite biozonation and Zalasiewicz, J.A. 2004. Estimates of Ordovician lithofacies of southern Bolivia: relevance for mean standing diversity in low, middle and high palaeogeographic interpretations. Geological paleolatitudes. Pp 281-293 In Webby, B.D., Droser, Magazine, 141: 287-299. M.L., and Paris, F. (eds.) The Great Ordovician Ellwood, B., Tomkin, J., Brett, C.E. and biodiversification event. Columbia University Press, McDonald, W.D. 2004. A test of the 484 pp. magnetostratigraphic susceptibility: Upper Cope, J.C.W. 2004. Bivalve and rostroconch Ordovician (Edenian) Kope Formation, Kentucky and molluscs. 196-208 In: Webby, B. D., Paris, F., development of floating point time scales. Geological Droser, M. L. and Percival, I. G. (eds). The Great Society of America Abstracts with Programs 36 (6). Ordovician Biodiversification event. Columbia Eriksson, M. and Hints, O. 2004. Diversity trends of University Press, New York. Ordovician jawed polychaetes. In: Hints, O. and Cornell, S.R., and Brett, C.E. 2004. Comparative Ainsaar, L. (eds.). WOGOGOB-2004: Conference sequence stratigraphy of the Black River to lower Materials. Abstracts and Field Guide Book. Tartu Trenton Group Interval (Upper Ordovician): University Press, Tartu: 29-30. Hints, O. and Ainsaar, Implications for climatic, and associated faunal L. (eds.). 2004. WOGOGOB-2004 Conference changes. American Association of Petroleum Materials. Tartu University Press, Tartu: 1-140. Geologists Eastern Section Meeting, (Columbus, OH), Ernst, A. and Suttner, T. 2004. Bryozoa from the AAPG Bulletin Vol. TBA. Pin Formation (Upper Ordovician - Lower Silurian) Dahlqvist, P. 2004. Late Ordovician (Hirnantian) in the Tethyan Zone of the Indian Himalayas. Early depositional pattern and sea-level change in shallow Palaeozoic Palaeogeography and Palaeoclimate, marine to shoreface cycles in central Sweden. IGCP 503, Erlanger Geologische Abhandlungen, Sb. Geological Magazine 141, 605-16. 5, Erlangen: 33. Dahlqvist, P. and Calner, M. 2004. Late Ordovician Fang, Z-J. and Cope, J.C.W. 2004. Early palaeoceanographic changes as reflected in the Ordovician bivalves from Dali, West Yunnan, China. Hirnantian - early Llandovery succession of Jämtland, Palaeontology, 47: 1121-1158. Sweden. In M.C. Pope and M.T. Harris (eds.): New Fernández-Martínez, E., Carrera, M.G. and Insights into Late Ordovician Climate, Oceanography, Rodríguez, S., 2004. Corales tabulados del and Tectonics, 149-164. Palaeogeography, Ordovícico (Caradoc) de la Precordillera Argentina. Palaeoclimatology, Palaeoecology 210. Revista Española de Paleontología 19 (1): 47-59. Díaz Martínez, E. and Grahn, Y. 2004. Ordovician- Frey, R.C., Beresi, S.M., Evans, D.H., King, A.H. Silurian boundary near La Paz (Bolivia): stratigraphy, and Percival, I.G. 2004. Nautiloid cephalopods. In sedimentology, chitinozoan biostratigraphy and Webby, B.D., Paris, F., Droser, M.L. and Percival, regional palaeogeographic implications. In: A. I.G. (eds.), The Great Ordovician Biodiversification Munnecke, T. Servais y C. Schulbert (eds.), Event. Columbia University Press, New York: 209- "International Symposium on Early Palaeozoic 213. 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Percival (eds), Columbia University Press, New York, Ordovician Biodiversification Event. Columbia 408 pp. University Press, New-York: 223–230. Ghobadi Pour, M., Popov, L.E., Lehnert, O., Hints, L. and Miidel, A. 2004. Late Ordovician Hairapetian, V. and Hosseini, M. 2004. Emergence ripple marks in Vasalemma quarry, NW Estonia. In: of the Palaeozoic Evolutionary Fauna in the early Hints, O., Ainsaar, L. (eds.) WOGOGOB-2004 8th Ordovician of the Alborz Range, northeastern Iran. Meeting of the Working Group on the Ordovician Erlangen Geologische Abdhanglungen, Sonderband Geology of Baltoscandia. May 13-18, 2004, Tallinn 5, International Symposium on Early Palaeozoic and Tartu, Estonia. Conference Materials. Abstracts palaeogeography and Palaeoclimate, Erlangen, and Field Guidebook. Tartu. 39-40. September 1-3, 2004. Abstracts and field guides: 38. Hints, L., Männik, P. and Pärnaste, H. 2004. Stop Harper, D.A.T. 2004. Palaeontological collections at 3. Vasalemma quarry. In: Hints, O. and Ainsaar, L. the Geological Museum, University of Copenhagen: (eds.). WOGOGOB-2004 Conference Materials. from cabinet of curiosities to databases. Scripta Tartu University Press, Tartu: 121-124. Geologica Special Issue 4, 118-126. Hints, O., Nõlvak, J., Mens, K. and Viira, V. 2004. Harper, D.A.T. 2004. Brachiopods, 301-310. In New palaeontological finds from the Tremadocian of Selley, R.C., Cocks, L.R.M. and Plimer, I.R. (eds) Kadriorg, Tallinn, North Estonia. In: Hints, O. and Encyclopedia of Geology. Elsevier, Amsterdam. Ainsaar, L. (eds.). WOGOGOB-2004: Conference Harper, D.A.T., Cocks, L.R.M., Sheehan, P.M., Materials. Abstracts and Field Guide Book. Tartu Bassett, M.G., Copper, P., Holmer, L.E., Jin Jisuo University Press, Tartu: 43-44. and Rong Jia-yu 2004. Ordovician brachiopod Hints, L., Oraspõld, A. and Nõlvak, J. 2004. Pirgu diversity, 157-178. In Webby, B.D., Droser, M.L., Stage in the East Baltic: lithotypes, biozonation and Paris, F. and Percival, I.G. (eds) The Great Ordovician problems of correlation. In: Hints, O., Ainsaar, L. Biodiversification Event. Columbia University Press. (eds.) WOGOGOB-2004 8th Meeting of the Working Harper, D.A.T., Villas, E. and Ortega, G. 2004. Group on the Ordovician Geology of Baltoscandia. Lipanorthis Benedetto from the Tremadocian of NW May 13-18, 2004, Tallinn and Tartu, Estonia. Argentian reidentified as a dalmanellidine: Conference Materials. Abstracts and Field Significance for the origin and early radiation of the Guidebook. Tartu. 41-42. punctuate orthide brachiopods. Lethaia 37, 271-279. Iwata K., Buslov M.M., Sennikov N.V., Ermikov Harris, M.T, Sheehan, P., Ainsaar, L., Hints, L., V.D., Obut O.T., Izokh N.G. and Khlebnikova Männik, P., Nõlvak, J. and Rubel, M. 2004. Upper T.V. 2004. Late Cambrian-Early Ordovician Ordovician sequences of western Estonia. accretion complex and Early-Middle Paleozoic (?) Palaeogeography, Palaeoclimatology, Palaeoecology, volcanic-siliceous terrigenous sequence in the 210: 135-148. Charysh-Terekta strike-slip zone of the North Altai Harris, M.T., Schultz, T., Sheehan, P.M., Ainsaar, Mountains, Russia. International Symposium on L., Nõlvak, J., Hints, L., Männik, P. and Rubel, M. Growth and Deformation of Asian Continent. 2004. The Upper Ordovician of Estonia: facies, Extended Abstracts. The Hokkaido University sequences, and basin evolution. In: Hints, O., Ainsaar, Museum Press: 11-14. L. (eds.) WOGOGOB-2004 8th Meeting of the Johnson, M. E., Rong Jiayu and Su Wen-bo. 2004. Working Group on the Ordovician Geology of Paleogeographic orientation of the Sino-Korean Plate Baltoscandia. May 13-18, 2004, Tallinn and Tartu, based on evidence for a prevailing Silurian wind Estonia. Conference Materials. Abstracts and Field field. The Journal of Geology, 112: 671-684. Guidebook. Tartu. 37-38. Kaljo, D., Hints, L., Martma, T., Nõlvak, J. and Heredia, S.E. and Beresi, M.S. 2004. La Formación Oraspõld, A. 2004. Late Ordovician carbon isotope Empozada y su relación con la Formación Estancia trend in Estonia, its significance in stratigraphy and San Martín (Nov. nom.), Ordovícico de la environmental analysis. Palaeogeography, Precordillera de Mendoza, Argentina. Revista Palaeoclimatology, Palaeoecology, 210; 165-185. Asociación Geológica Argentina, vol. 59 (2):178-192. Kanygin, A.V. 2001. The Ordovician phenomenon of Buenos Aires. explosive divergence in the Earth’s organic kingdom: Hints, L. 2004. Maximizing diductor adhension: An ecological revolution in marine ecosystems // unusual cardinal process in Late Ordovician Biodivergence in the Earth history. Abstracts for brachiopods from Estonia. Acta Palaeontologica XLVII Session of Paleontological Society, St.- Polonica, 49 (4); 635-638. Petersburg, pp. 37-40 (in Russian). Hints, O. and Ainsaar, L. (eds.). 2004. WOGOGOB- Kanygin, A.V. 2001. The Ordovician phenomenon of 2004 Conference Materials. Tartu University Press, explosive divergence of the Earth’s organic realm: Tartu: 1-141. causes and effects of the biosphere evolution. Hints, O., Eriksson, M., Högström, A.E.S., Kraft, P. //Russian Geology and Geophysics. Vol. 42, no. 4, p. and Lehnert, O. 2004. Chapter 23. Worms, Worm 631-667. like and Sclerite-Bearing Taxa. In: Webby, B.D., Paris, Kanygin, A.V. 2001. Actual and retrospective F., Droser, M.L., Percival, I.G. (eds.). The Great models for biosphere: the ways to overcome

30 ORDOVICIAN NEWS Nº 22 conceptual differences // Fundamental problems in interpretation. 32-nd International Geological geology and tectonics of North Eurasia. Abstracts for Congress. Florencia, Italy, August 20-28, 2004. the 90-th A.L. Yanshin anniversary Conference. Scientific Sessions: abstracts (part 2) Session Novosibirsk, SB RAS Publishing House, pp. 99-101 213/G22.02 – The global Ordovician Earth system, (in Russian). pp. 989-990. Kanygin, A.V. 2001. Ozone hypothesis of the Kanygin, A.V., Yadrenkina A.G., Timokhin A.V., Ordovician phenomenon of explosive divergence and Moskalenko T.A., Sychev O.V. and Abaimova spatial expansion of the marine biotas. //International G.P. 2005. Stratigraphy of oil and gas Basins of geological correlation program IGCP 410/421 Joint Siberia. Ordovician of Siberian Platform. meeting, Novosibirsk, 4-21 August, 2001, pp. 100- Novosibirsk, Publishing House of SB RAS, 102. Department «Geo» (in press). Kanygin, A.V. 2002. Biostratigraphy in the context of Kanygin, A.V., Yadrenkina, A.G., Timokhin, A.V. new evolutional paradigm (“universal evolutionism”) and Sychev, O.V. 2002. Evolution chorology of //Biochronological problems in paleontology and benthic communities in the Ordovician seas of geology. Abstracts for XLIII Session of Siberia. In: First International Paleontological Paleontological Society in RAS (8-12 April 2002), Congress (IPC 2002), Geological Society of St.-Petersburg, 2002, pp. 43-47 (in Russian). Australia, Abstracts. No. 68. 6-10 July, 2002, Kanygin, A.V. 2002. Revolutional innovations in the Macquarie University, N.S.W., Australia, pp. 35-36. history of early biosphere (Archean-Ordovician) and Katzung, G., Maletz, J. and Feldrappe, H. 2004. their relation to global geological events. //Geology, Altpaläozoikum. pp. 51-69. In Katzung, G. Geologie geochemistry and geophysics at the turn from the XX- von Mecklenburg-Vorpommern. Schweizerbart'sche th to XXI-st century. Russian Foundation for Basic Verlagsbuchhandlung. Research (RFBR) in Asiatic region. Abstracts for Kim, D.H., Lee, J.G. and Choi, D.K. 2004. A “RFBR 10-th anniversary” Conference. Irkutsk, pp. proposal for regional stages for the Cambrian- 51-53 (in Russian). Ordovician in Korea. Newsletters on Stratigraphy, 40: Kanygin, A.V. 2002. Ecological revolution within 11-37. Ordovician marine ecosystems: start of coherent Kiipli, T. and Kallaste, T. 2001. Volcanogenic evolution of the Biosphere. In: First International interbed. In: A. Põldvere (Ed.) Estonian Geological Paleontological Congress (IPC 2002). Geological Sections, Valga (10) drillcore. Geological Survey of Society of Australia, Abstracts. No. 68. 6-10 July, Estonia, Bulletin 3: 16 – 17. 2002, Macquarie University, N.S.W., Australia, pp. Kiipli, T. and Kallaste, T. 2002. Characteristics of 87-88. volcanism. In: A. Põldvere (Ed.) Estonian geological Kanygin, A.V. 2002. Two ways of life development sections, Soovälja (K-1) drill core, Geological Survey on the Earth: evolutionary potential of exogenic of Estonia, Bull. 4: 17 – 21. (photospheric) and endogenic (hydrothermal) Kiipli, T. and Kallaste, T. 2003. Altered volcanic ecosystems. In: First International Paleontological ash beds. In: A. Põldvere (Ed.) Estonian geological Congress (IPC 2002), Geological Society of Australia, sections,Ruhnu (500) drillcore. Geological Survey of Abstracts. No. 68. 6-10 July, 2002, Macquarie Estonia, Bull. 5: 31 – 33. University, N.S.W., Australia, pp. 34-35. Kiipli, E., Kallaste, T. and Kiipli, T. 2004. Kanygin A.V. 2004. Eulogy on catastrophes. //First- Metabentonites of the Pirgu Stage (Ashgill, Upper hand science. No. 1, pp. 28-39. Ordovician) of the East Baltic. In: Hints O. and Kanygin, A.V. 2004. Geological conditions of life Ainsaar L. (Eds) WOGOGOB-2004, Conference evolution. //Present-day problems of science. Materials. Tallinn-Tartu, Estonia, 53-54. Materials of scientific session, 25-26 November 2004. Kiipli, T., Kallaste, T. and Kiipli, E. 2004. Areal Origin and evolution of life on the Earth. Novosibirsk, variations in the composition of the Kinnekulle pp. 23-38. altered volcanic ash bed (Caradoc) - relations to Kanygin, A.V. 2004. Geoaromorphoses determine the sedimentary facies. In: Hints O. and Ainsaar L. (Eds) main way of biosphere evolution. //Biosphere WOGOGOB-2004, Conference Materials. Tallinn- processes:paleontology and stratigraphy. Abstract for Tartu, Estonia, 55-56. the 50-th Session of All-Union Paleontological Koren, T., Gorshenina, V. and Tolmacheva, T. Society, St.-Petersburg, pp. 56-59. 2004. Volkhov graptolites from the Lower-Middle Kanygin, A.V. 2004. Speciation in the context of Ordovician boundary beds of the St. Petersburg ecosystem reconstructions (for example Ordovician region Russia. Paläontologische Zeitschrift, 78(1): explosion of biodiversity). //Abstracts for the 195-215. Conference “Species and speciation problem”, Tomsk, Kraft, P. and Kraft, J. 2004. Boundary intervals of October 2004, 4 p. (in Russian). graptolite biozones in the Klabava Formation Kanygin, A.V. 2004. The unique Ordovician (Ordovician, Prague Basin). Geoscience Research explosion of biodiversity in retrospect of early Reports for 2003, Czech Geological Survey: 25-27. evolution of biosphere: geological and biological [In Czech.]

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Kraft, P. and Lehnert, O. 2004. Palaeoscolecidans Lee, S.B., Lefebvre, B. and Choi, D.K. 2004. and Chaetognaths. In: Hints, O., Eriksson, M., Morphometric analysis of Tremadocian (earliest Högstöm, A. E. S., Kraft, P. and Lehnert, O.: Chapter Ordovician) kirkocystid mitrates (Echinodermata, 23. Worms, Wormlike and Sclerite-Bearing Taxa. In: Stylophora) from the Taebaeksan Basin, Korea. Webby, B. D., Paris, F., Droser, M. L. and Percival, I. Geobios, 37(6): 731-748. (eds.): The Great Ordovician Biodiversification Event. Lee S.B., Lefebvre, B. and Choi, D.K. (in press). Columbia University Press, New York: 228-230. Uppermost Cambrian cornutes (Echinodermata, Kraft, P. and Linnemann, U. (eds.). 2004. Traces of Stylophora) from the Taebaeksan Basin, Korea. the Rheic Ocean in Central Europe. Excursion II, Journal of Paleontology, 79(1): 146-160. Post-Symposium. In: Kraft, P., Linnemann, U. and Lefebvre, B. and Esprit, N. 2004. Palaeoecology Mazur, S. (eds.): Gondwanan margin of the Rheic and palaeobiogeography of Cambro-Ordovician Ocean in the Bohemian Massif. IGCP 497 The Rheic stylophoran echinoderms. Erlanger Geologische Ocean: Its origin, Evolution and Correlatives, Opening Abhandlungen, 5: 50. Meeting 2004. Excursion Guidebooks and Abstratcs: Lefebvre, B., Ghobadipour, M. and Nardin, E. (in 23-92. press). Ordovician echinoderms from the Tabas and Kraft, P. Linnemann, U. and Mazur, S. (eds.). Damghan regions, Iran : palaeobiogeographical 2004. Gondwanan margin of the Rheic Ocean in the implications. Bulletin de la Société géologique de Bohemian Massif. IGCP 497 The Rheic Ocean: Its France. origin, Evolution and Correlatives, Opening Meeting Lefebvre, B., Ghobadipour, M. and Nardin, E. 2004. Excursion Guidebooks and Abstratcs: 1-108. 2005. Ordovician echinoderms from the Tabas and Kruse, P.D., Laurie J.R., and Webby B.D. 2004. Damghan regions, Iran: palaeobiogeographical Cambrian geology and palaeontology of the Ord implications. Bulletin de la société géologique de Basin. Memoir of the Australasian Aassociation of France. In Press. Palaeontologists 30: 1-58. Li, Jun. 2004. Environmental significance of the Landing, E. 2003. Sauk “sequence” and the Knox Ordovician acritarchs from Tarim Basin, NW China. unconformities: Practical base of the Upper Polen, 14: 133-134. Ordovician. Geological Society of America, Abstracts Li, Jun, Changqun Cao, Servais, T., and Youhua with Programs, 35(6): 544, 545. Zhu. 2004. Later Permian acritarchs from Landing, E. 2005. Early Paleozoic Avalon– Meishan（SE China）in the context of Permian Gondwana unity: an obituary—response to palaeobiogeography and palaeoccology. N. Jb. Geol. “Palaeontological evidence bearing on global Paläont. Mh., 2004 (7): 427-428. Ordovician–Silurian continental reconstructions” by Li, Jun, Servais, T. Yan Kui, and Zhu Huaicheng, R.A. Fortey and L.R.M. Cocks. Earth-Science 2004. A nearshore-offshore trend in the acritarch Reviews, 69: 169–175. distribution of the Early-Middle Ordovician of the Landing, E., Pe-Piper, G., Kidd, W.S.F., and Yangtze Platform, S-China. Review of Azmy, K. 2003. Tectonic setting of outer trench slope Palaeonbotany and Palynology, 130 （1-4): 141-161. volcanism: pillow basalt and limestone in the Li, Jun and Yan Kui. 2004. The Ordovician Ordovician Taconian orogen of eastern New York. acritarchs assemblage from Meitan Formation, Canadian Journal of Earth Sciences, 40: 1173–1187. Tongzi, South China: biostratigraphy and Landing, E., Westrop, S.R., and Lee, D.H. 2003. biodiversity. Erlanger geologische Abhandlungen First Middle Ordovician biota from southern New Sonderband 5: 50-51. Brunswick: stratigraphic and tectonic implications for Li, Y., Kershaw, S. and Chen, X. 2004. Control of the evolution of the Avalon continent. Canadian carbonate sedimentation and reef growth in Journal of Earth Sciences, 40: 715–730. Llandovery sequences on the northwestern margin of Landing, E., Westrop, S.R., and Van Aller Yangtze Platform, South China. Gondwana Research, Hernick, L. 2003. Uppermost Cambrian–Lower 7 (4), 937-949. Ordovician faunas and Laurentian platform sequence Li, Y., Kershaw, S. and Mu, X. 2004. Ordovician stratigraphy, eastern New York and Vermont. Journal reef systems and settings in south China before the of Paleontology, 77: 78–98. Late Ordovician mass extinction. Palaeogeography, Lavoie, D. and Asselin, E. 2004. A New Palaeoclimatology, Palaeoecology. 205, 235-254. Stratigraphic Framework for the Gaspe Belt in Löfgren, A. 2004. The conodont fauna in the Middle Southern Quebec: Implications for the pre-Acadian Ordovician Eoplacognathus pseudoplanus Zone of Appalachians of Eastern Canada. Canadian Journal of Baltoscandia. Geological Magazine, 141: 505-524. Earth Sciences 41: 507-525. 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Nordic Paleomagnetic Workshop, GTK, Report Llandovery Sequences on the Northwestern Margin Q29.1/2004/1, Espoo: 103-108. of the Yangtze Platform, South China. Gondwana Lubnina, N.V. 2004. Ordovician palaeogeographical Research, 7(4): 937-939. reconstructions of Baltica: palaeomagnetic data. Ludvigson, G.A., Witzke, B.J., González, L.A., International Symposium on Early Palaeozoic Carpenter, S.J., Schneider, C.L., and Hasiuk, F.H., Palaeogeography and Palaeoclimate. Germany, 2004. Late Ordovician (Turinian-Chatfieldian) carbon Erlangen: 52. isotope excursions and their stratigraphic and Lubnina, N.V. and Zaitsev, A.V. 2004. paleoceanographic signficance: Palaeogeography, Paleomagnetic investigations of the Early-Middle Palaeoclimatology, Palaeoecology, 210: 187-214 . Ordovician limestones of the St. Petersburg area. In: Maletz, J. 2004. Isolated Chewtonian (Lower Hints, O., Ainsaar, L. (eds.). WOGOGOB-2004 Ordovician) graptolites from western Newfoundland. 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Paleomagnetic investigation of the Ordovician Fossils. In: Benedetto, J.L. (Ed.), Ordovician Fossils rocks from St. Petersburg area: new paleomagnetic of Argentina. Universidad Nacional de Córdoba, data and magnetostratigraphy. In: Mertanen, S. (eds.). Secretaría de Ciencia y Tecnología, p. 507-553. Supercontinents, remagnetizations and geomagnetic Mángano, M.G. and Buatois, L.A. 2003. Trace modeling. 5th Nordic Paleomagnetic Workshop, GTK, fossils and storm deposits in the Late Cambrian to Report Q29.1/2004/1, Espoo: 29-34. Early Ordovician Santa Rosita Formation, northwest Lee, S.-B., Lefebvre B. and Choi, D.K. 2004. Argentina. Third Latinoamerican Sedimentological Morphometric analysis of Tremadocian (earliest Congress, Abstract Volume: 175-176. Ordovician) kirkocystid mitrates (Echindermata, Mángano, M.G. and Buatois, L.A. 2003. Stylophora) from the Taebaeksan Basin, Korea. Ichnofabrics from Late Cambrian to Early Ordovician Geobios, 37: 731-748. open marine siliciclastic deposits in northwest Legrand, Ph. 2003. Paléogéographie du Sahara Argentina: Environmental controls and evolutionary algérien à l'Ordovicien terminal et au Silurien innovations. VII International Ichnofabric Workshop, inférieur. Bulletin de la Société géologique de France, Abstracts, p. 37. Basel. 174 (1): 19-32. Mángano, M.G. and Buatois, L.A. 2003. El Legrand, Ph. 2004. The Late Ordovician glaciation of Paleozoico inferior de la Sierra del Campo, provincia North-African Gondwana: the present stage of de Tucumán: Nuevos datos sobre la prolongación knowledge; 32 nd IGC Florence - Scientific Sessions: austral de la cuenca eopaleozoica del noroeste abstracts (2): 988. argentino. Revista de la Asociación Geológica Le Hérissé, A., Massa, D., Paris, F. and Steemans, Argentina 58: 623-628. P. 2004. Northern Gondwana palynomorps from the Mángano, M.G. and Buatois, L.A. 2004. Ordovician-Silurian boundary beds: the exemple of Integración de estratigrafía secuencial, northern Chad. Sedimentary basins of Libya, Third sedimentología e icnología para un análisis Symposium: Geology of East Libya, Binghazi, 21-23 cronoestratigráfico del Paleozoico inferior del Nov. 2004. noroeste argentino. Revista de la Asociación Lehnert, O., Nowlan, G.S. and Lee, C. 2004. Die Geológica Argentina 59: 273-280. Bedeutung der Conodontenstratigraphie in der Mángano, M.G. and Droser, M.L. 2003. Ecospace Klastenforschung am Beispiel der Tertiärabfolgen von utilization and paleoenvironmental expansion during Ellesmere Island (kanadische Arktis). Archiv für the Ordovician radiation: the ichnologic evidence. Geschiebekunde 3 (8/11): 599-618. Proceedings of the 9th International Symposium on Li, J., Servais, T., Yan, Y., and Zhu, H. 2004. A the Ordovician System, San Juan: 315-319. nearshore-offshore trend in the acritarch distribution Mángano, M.G. and Droser, M.L. 2004. 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Mángano, M.G. and Waisfeld, B. 2004. Looking for shafts of the Early Ordovician hard substrates (St the usual suspects: Trilobites as Cruziana-Rusophycus Petersburgs region, Russia). 4th International producers in lower Paleozoic sandstones of northwest Bioerosion Workshop, Abstract Book. Institute of Argentina. Ichnia 2004, First International Congress Geology, Academy of Sciences of the Czech on Ichnology, Abstract Book. Trelew. Republic, Prague: 44-45. Männik, P. 2003. Distribution of conodonts. In Mikuláš, R. and Dronov, A.V. 2004. Early Põldvere, A. (ed.) Ruhnu (500) drill core. Estonian Ordovician of the Baltic Region: A birthplace of Geological Sections 5, Geological Survey of Estonia, modern bioerosion and complex ichnofabric? Ichnia Tallinn: 17–23. 2004. First International Congress of Ichnology. Männik, P. 2004. Recognition of the Mid-Caradoc Abstract Book. Museo Paleontológico Egidio Event in the conodont sequence of Estonia. In: Hints, Feruglio, Trelew: 57-58 O. and Ainsaar, L. (eds.). WOGOGOB-2004 Melchin, M.J., Rong Jiayu, Gradstein, F., Koren’ Conference Materials. Tartu University Press, Tartu: T.N. and Finney, S.C. 2004. Stability in Stratigraphy. 63-64. Lethaia, 37(1): 124-125. Männik, P. , Beznosova, T. and Martma, T. 2004. Moczydlowska, M., Popov, L. and Stockfors, M. Ordovician–Silurian boundary in the Subpolar Urals, 2004. Upper Cambrian-Ordovician succsessuins some new developments. In: Hints, O. and Ainsaar, L. overlying Timanian complexes: new evidence of (eds.). WOGOGOB-2004 Conference Materials. Tartu acritarchs and brachiopods from Kolguev Island, University Press, Tartu: 65-66. Arctic Russia. Geobios, 37(2): 239-251. Mayr, U., Brent, T., de Freitas, T., Frisch, T., Mohiuddin, U., Molyneux, S. Paris, F. and Penney Nowlan, G.S. and Okulitch, A.V. 2004. Geology of R.A. 2004. Haima Supergroup of Oman: eastern Prince of Wales Island and adjacent smaller Biostratigraphy and palaeoenvironments. XI IPC islands, Nunavut. Geological Survey of Canada Granada, Abstracts. Polen, 14: 440. Bulletin 574. Molyneux, S.G, Mohiuddin, U., Penney, R. and McGhee G.R., Jr., Sheehan, P.M., Bottjer, D.J. and Paris, F. 2004. Turnover of acritarch and chitinozoan Droser, M.L. 2004. Ecological ranking of species, endemism and sequence stratigraphy in the Phanerozoic biodiversity crises: ecological and Lower Palaeozoic of Oman XI IPC Granada, taxonomic severities are decoupled. Palaeogeography, Abstracts (Oral presentations). Polen, 14: 132. Palaeoclimatology, Palaeoecology, 211: 289-297. Moreau, J., Ghienne, J.-F., Deynoux, M. and McLaughlin, P.I. and Brett, C.E. 2004. Eustatic and Rubino, J.-L. 2004. Ice-proximal sedimentary tectonic control on the distribution of marine records of the Late Ordovician glacial cycles. Early seismites: examples from the Upper Ordovician of palaeozoic Paleogeography and Palaeoclimates, IGCP Kentucky, USA. Sedimentary Geology, 168: 165-192. 503, Erlangen, September 1-3. In: Munnecke, A., McLaughlin, P.I. and Brett, C.E. 2004. Sequence Servais, T., and Shulbert, C.. City-Druck, Tischner stratigraphy and stratinomy of marine hardgrounds: and Hoppe Gmbh, Nürnberg, Germany. P.55. Examples from the middle Paleozoic of eastern Moya, M.C., Malanca, S., Monteros, J.A, Albanesi, Laurentia. Geological Society of America Abstracts G.L., Ortega, G. and Buatois, L.A. 2003. Late with Programs, 36 (6). Cambrian – Tremadocian faunas and events from the McLaughlin, P.I. and Brett, C.E. 2004. High- Angosto del Moreno section, Eastern Cordillera, resolution sequence and event stratigraphy of the Argentina. Proceedings of the 9th International Trenton-Utica succession in Ohio: new insights into Symposium of the Ordovician System, San Juan: 439- the Late Ordovician paleogeography of eastern 444. Laurentia. Abstracts with programs. AAPG eastern Mullins, G.L., Aldridge, R.J. and Dorning, K.J. section meeting 2004. 2004. The phytoPal reference database, 09/09/2004, McLaughlin, P.I. and Brett, C.E. 2004. Faunal 97 pp. http://www.le.ac.uk/geology/glm2/phytopal/ gradient analysis of “shoal” carbonates: uncovering reference_database.pdf. the role of siliciclastic sediment starvation in Mullins, G. L., Aldridge, R.J., Dorning, K. J., Le producing widespread skeletal sediments. Abstracts Herisse, A, Moczydlowska-Vidal, M., Molyneux, with programs, AAPG Annual Meeting 2004. S., Servais, T. and Wicander, R. 2004. PhytoPal: a McLaughlin, P.I., Brett, C.E., Taha McLaughlin, database of Palaeozoic phytoplankton. Abstracts, XI S.L., and Cornell, S.R. 2004. High-resolution International Palynological Congress, Granada, sequence stratigraphy of a mixed carbonate- Spain. Polen, 14: 242. ISSN: 1135-8408. Poster at siliciclastic, cratonic ramp (Upper Ordovician; http://www.le.ac.uk/geology/glm2/phytopal/granada.p Kentucky-Ohio, USA): insights into the relative df. influence of eustasy and tectonics through analysis of Munnecke, A., Samtleben, C. and Bickert, T. 2003. facies gradients. Palaeogeography, Palaeo- The Ireviken Event in the lower Silurian of Gotland, climatology, Palaeoecology 210: 267-294. Sweden - relation to similar Palaeozoic and Mikuláš, R. and Dronov, A.V. 2004. Description vs. interpretation: problem of small rounded pits and

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Proterozoic events. Palaeogeography, Juan, Argentina. Reunión anual de comunicaciones de Palaeoclimatology, Palaeoecology, 195(1-2): 99-124. la Asociación Paleontológica Argentina, Diamante. Munnecke, A., Servais, T. and Schulbert, C. (eds.) Ameghiniana 41 (4): 17. 2004. International Symposium on Early Palaeozoic Ortega, G., Albanesi, G.L. and Frigerio, S.E. 2004. Palaeogeography and Palaeoclimate, September 2004, Early Darriwilian graptolite and conodont biofacies in Erlangen, Germany - Abstracts and Field Guides.- the Los Azules Formation, Cerro Viejo section, Erlanger geologische Abhandlungen, Sonderband 5, Central Precordillera, Argentina. International 156 pp. (http://www.pal.uni-erlangen.de/IGCP503/ Symposium on Early Palaeozoic Palaeogeography page/proceedings.pdf) and Paleoclimate, Erlanger Geologische Munnecke, A. and Westphal, H. (in press). Abhandlungen, Erlangen, Germany. Abstract: 57. Variations in primary aragonite, calcite, and clay in Owens, R.M. 2002. Cyclopygid trilobites from the fine-grained calcareous rhythmites of Cambrian to Ordovician Builth-Llandrindod inlier, central Wales. Jurassic age - an environmental archive? Facies, 51. Palaeontology, 45:469-485. Musteikis, P. and Cocks, L.R.M. 2004. Owens, R.M. 2004. Late Ordovician and early Strophomenide and orthotetide Silurian brachiopods Silurian Proetida (Trilobita) from north-western and from the Baltic region, with particular reference to central Europe. Palaeontology, 47: 557-578. Lithuanian boreholes. Acta Palaeontologica Polonica Palmer, T.J. and Wilson M.A. (in press). Calcite 49: 455-482. precipitation and dissolution of biogenic aragonite in Nardin, E. and Lefebvre, B. 2004. Palaeogeography shallow Ordovician Calcite Seas. Lethaia, 37. and biodiversity of Cambro-Ordovician echinoderms. Paris, F., Achab, A., Asselin, E., Nõlvak, J., Wang, Erlanger Geologische Abhandlungen, 5: 55-56. X.-F., Chen, X., Grahn, Y., Sennikov, N., Obut, O., Nardin, E., Lefebvre, B. and Ghobadipour, M. Samuelsson, J., Vecoli, M., Verniers, J. and 2004. Lower Ordovician echinoderms from the Winchester- Seeto, T., 2004. Chitinozoa. In: B. D. Lashkarak Formation, Damghan area, northern Iran. Webby, M.L. Droser, F. Paris and I. Percival. In: Chatzipetros A.A. and Pavlides S. B. (eds.). (Editors), The Great Ordovician Diversification Proceedings, 5th International Symposium on Eastern Event. Columbia University Press: 294-311. Mediterranean Geology, 14-20 April 2004, Paris, F. A. Le Hérissé, O., Vecoli, M., Monod, J.F. Thessaloniki, 1: 484-487. Ghienne, Dean W.T., Kozlu H. and Günay Y.. Nardin, E., Lefebvre, B. and Ghobadi Pour, M. 2004. Northern Gondwana chitinozoans and 2004. Lower Ordovician echinoderms from the acritarchs from the Ordovician of Turkey. XI IPC Lashkarak Formation, Damghan area, northern Iran. Granada, Abstracts (Oral presentations). Polen, 14: Fifth International Symposium on Eastern 163. Mediterranean Geology, Thessaloniki, Greece, 14-20 Paris, F. and Webby B.D. 2004. Aims, achievements April 2004, Abstracts, Ref: S5-18. and lessons learnt from six years of IGCP Project n° Nestell, G. P. and Tolmacheva, T. Yu. 2004. Early 410. In A. Munneke, T. Servais and C. Schulbert eds: Ordovician foraminifers from the Lava River Section, International Symposium on Early Palaeozoic northwestern Russia. Micropaleontology, 50 (3): 253- Palaeogeography and Plalaeoclimate. Erlangen 280. September 1-3, 2004. Abstract and Field Guides, Nitecki, N.H. Webby B.D., Spjelnaes N. and Zhen Erlanger geol.Abh., 5, 156: 59. Y.Y. 2004. Receptaculitids and Algae; pp.336-347. In Podhalańska, T. 2004. New data on the Ordovician B.D.Webby, F. Paris, M.L. Droser and I.G. Percival ichnofossils from the Koszalin-Chojnice region (edits.). The Great Ordovician Biodiversification (Pomerania, NW Poland), palaeogeographic Event. Critical Moments and Perspectives in implication. Int. Symp.on Early Palaeozoic Paleobiology and Earth History Series. Columbia Palaeogeography and Palaeoclimate. Abstracts and University Press, New York. Field Guides, Erlangen geol. Abh., 5, p. 60. Nowlan, G.S., Bobrowsky, P.M. and Clague, J.J. Pope, M., and Harris, M.T. 2004. New insights into 2004. Protection of Geological Heritage: A North Late Ordovician climate, oceanography and tectonics American Perspective on Geoparks. Episodes, v. 27, (introduction to theme issue): Palaeogeography, p. 172-176. Palaeoclimatology, and Palaeoecology, 210: 117-118. Ortega, G. and Albanesi, G.L. 2004. El registro de Popov, L.E. and Holmer, L.E. 2003. Understanding fósiles guías para la correlación intercontinental del lingulid brachiopods: Obolus and Ungula as Paleozoico Inferior en el Sistema de Famatina a partir examples. Carnets de Geologie – Notebooks on de los primeros hallazgos efectuados por Geology, Maintenin, Article 2003/06 Bodenbender. Simposio Bodenbender. CRILAR, La (CG2003_AO6_LEP-LEH): 13 pp. Rioja. INSUGEO, Tucumán, Miscelánea 13: 21-22. Puura, I. and Viira, V. 2004. Tracing the base of the Ortega, G., Albanesi, G.L., Banchig, A.L. and Ordovician System in Baltoscandia. In: Hints, O. Peralta, G.L. 2004. Bioestratigrafía de graptolitos y Ainsaar, L. (eds.). WOGOGOB-2004 Conference conodontes de la Formación Sierra de La Invernada Materials. Tartu University Press, Tartu. 85-86. (Ordovícico Medio a Superior), Precordillera de San

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Pyle, L. J. and Barnes C.R. 2003. Lower Paleozoic echinoderms in the Early Palaeozoic// Erlanger stratigraphic and biostratigraphic correlations in the geologische Abhandlungen. 5. S. 62-63. Canadian Cordillera: implications for the tectonic Rozhnov, S.V. 2004. Echinoderms of the biogerms of evolution of the Laurentian margin. Canadian Journal the Baltic Ordovician basin: comparison of the of Earth Sciences, v. 40, p. 1739-1753. coldwater (Volkhovian) and tropical (Keila) Raevskaia, E., Vecoli, M., Bednarczyk, W. and communities// 8th Meeting of the Working Group on Tongiorgi, M. 2004. Early Arenig acritarchs from the the Ordovician Geology of Baltoscandia. Conference East European Craton and their palaeobiogeographic materials. Tartu University Press. P. 88-89 significance. Lethaia 37 (1): 97-111.; Taylor and Rozhnov, S.V. 2004. Development of the echinoderm Francis, Oslo. communities in the Eastern part of the Baltic Rapalini, A.E. and Cingolani, C.A. 2004. 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Middle Ordovician (Whiterockian) gastropods Formation: Implications for the recognition of the from the Table Point Formation, western Cambrian-Ordovician boundary in the Eastern Newfoundland. Newfoundland Department of Mines Cordillera of northwest Argentina. Revista Brasileira de Paleontologia 6: 43-48. and Energy, Report 04-1:225-234 Sadler, P.M. and Cooper, R.A. 2004. Calibration of Rong, Jiayu, Alvarez F., Modzalevskaya T.L. and the Ordovician timescale. In Webby, B.D., Droser, Zhang Yan. 2004. Revision of the Athyrisininae, M.L., and Paris, F. (eds.), The Great Ordovician Siluro-Devonian brachiopods from China and Russia. biodiversification event. Columbia University Press: Palaeontology, 47(4): 811-857. 48-51. Rong, Jiayu and Zhan Renbin. 2004. Niuchang Saltzman, M.R. and Young, S.A. 2005. 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Initial results of a 2D Sánchez, T.M., Marengo, L. and Astini, R.A., burial/thermal history model, central Appalachian 2003. Late Ordovician Bibalvia Heteroconchia basin, Ohio and West Virginia. U.S. Geological (Cycloconchidae and Glyptarcidae) from western Survey Open-File Report 04-1445, 1-34. Argentina. Ameghiniana, 40: 433-440. Rozhnov, S.V. 2002. Morphogenesis and evolution of Sennikov, N.V. 2003. Ordovician events in Altai- crinoids and other pelmatozoan echinoderms in the Salair-Kuznetsky and Tuva basins and their influence Early Paleozoic// Paleontol. journ. Vol. 36. Suppl. 6. on the sedimentary facies and marine biota (Siberia, P.S525-S674. Russia) // In: Albanesi G.I., Beresi M.S. and Peralta Rozhnov, S.V. 2003. (coautors Sumrall, Colin D., S.H. (Eds.). Ordovician from the Andes. INSUGEO, Koverman, Kimberly S.) Where is the missing Serie Correlacion Geologica, 17: 461-465. 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Ordovician Basin (Siberia, Russia). In: Ortega G. and Suttner, T.J., Schönlaub, H.P. and Hubmann, B. Acenolaza G.F. (Eds.). Proceedings of the 7th 2004. New conodont data of the 'Baron v. Kottwitz' International Graptolite Conference and Field Meeting section (Upper Silurian to Lower Devonian). Pangeo of the International Subcommission on Silurian Austria, Berichte des Institutes für Erdwissenschaften Stratigraphy. INSUGEO, Serie Correlacion Geologica, der Karl - Franzens - Universität Graz, 9: 395-397. 18: 93-97. Tan, Lan, Han, Nairen and Zhang, Yuandong. Sennikov, N.V., Obut, O.T., Iwata, K., 2004. Ordovician Graptolite Biostratigraphy of Khlebnikova, T.V., and Ermikov, V.D. 2004. Gongcheng, Guangxi, China. Journal of Stratigraphy, Lithological Markers and Bio-indicators of Deep- 28(2): 158-167. water Environments during Paleozoic Siliceous Taylor, P.D. and Wilson, M.A. 2003. Sedimentation (Gorny Altai Segment of the Paleo- Palaeoecology and evolution of marine hard substrate Asian Ocean) // Gondwana Research, Vol. 7, № 3: communities. Earth-Science Reviews, 62: 1-103. 843-852. Tesakov, Yu.I., Kanygin, A.V., Yadrenkina, A.G., Servais, T., Li-Jun, Stricanne, L., Vecoli, M. and Simonov, O.N., Sychev, O.V., Abaimova, G.P., Wicander, R., 2004. Acritarchs. In: B.D., Webby, F., Divina, T.A., Moskalenko, T.A. 2003. The Paris, M.L., Droser, and I.G., Percival, (eds.), The Ordovician of the north-western Siberian Platform. Great Ordovician Biodiversification Event. Columbia Novosibirsk, SB RAS Publishers, Affiliate “Geo”, University Press, New York; pp. 348-360. 364 p. (in Russian). Servais, T., Stricanne, L., Montenari, M. & Pross, Thomas, W.A. and Astini, R.A. 2003. Ordovician J. 2004. Population dynamics of galeate acritarchs at accretion of the Argentine Precordillera terrane to the Cambrian-Ordovician transition in the Algerian Gondwana: a review. 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Ordovician (Ashgillian) shoreface sandstones, Suttner, T.J. and Lukeneder, A. 2004. southern Jordan. Geoscience Africa, Johannesburg, Accumulations of Late Silurian serpulid tubes and South Africa. their palaeoecological implications (Blumau- Turner, S., Blieck, A. and Nowlan, G.S. 2004. Formation; Burgenland; Austria). Ann. Naturhist. Vertebrates (Agnathans and Gnathostomes). In: Mus. Wien, 105 A: 175-187. Webby, B.D., Paris, F., Droser, M.L. and Percival,

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I.G. (eds). The Great Ordovician Biodiversification European Suture Zone, Ghent/Ronse 9-12 october Event. Columbia University Press, "Critical moments 2004, p. 41-42. and perspectives in Earth history and paleobiology", Vanmeirhaeghe, J., Van Noten, K., Van Grootel, chapter 30: 327-335, 2 fig., 1 tabl. ; New York. G. and Verniers, J. 2004. Chitinozoans from the Tychsen, A. and Harper, D.A.T. 2004. Ordovician- Upper Ordovician of the Fauquez area (Brabant Silurian distribution of Orthida (Palaeozoic Massif, Belgium). Abstract for the IGCP 503 Brachiopoda) in the greater Iapetus Ocean region. Opening Meeting “Early Palaeozoic Palaeogeography Palaeontologia Electronica 7, 15 pp. and Palaeoclimate”, 1-3 september 2004, Erlangen, Vachard, D., Munnecke, A. and Servais, T. 2004. Germany, in: abstractbook, 1p. New SEM-observations of the keriothecal walls, Vecoli, M. 2004. Stratigraphic and palaeo- implications for the evolution of Fusulinida. Journal of environmental distribution of organic-walled Foraminiferal Research, 34(3): 232-242. microfossils in Cambrian-Ordovician transitional Vandenbroucke, T.R.A. 2004. Chitinozoan strata of borehole Bir Ben Tartar-1 (Tt-1; Ghadamis biostratigraphy of the Upper Ordovician Fågelsång Basin, southern Tunisia). Memoirs of the Association GSSP, Scania, southern Sweden. Review of of Australasian Palaeontologists 29: 13-30; Palaeobotany and Palynology, 130: 217-238. Geoscience Australia, Canberra. Vandenbroucke, T.R.A., Chen Xu and Verniers J. Vecoli, M. 2004. Complex dynamics and Self- 2004. Preliminary notes on the chitinozoans from the Organized Criticality in biodiversity patterns of Wangjiawan section. Report for the ISOS Hirnantian Palaeozoic marine microphytoplankton. 48th GSSP discussion site: http://seis.natsci.csulb.edu/ Palaeontological Association Meeting, Lille, France; ord2/default.htm December 17-20, 2004; Palaeontological Association Vandenbroucke, T.R.A., Van Nieuwenhove N. and Newsletter, 57, p. 188. Verniers, J. 2004. Towards an Upper Ordovician Vecoli, M. 2004. Diversity patterns of Ordovician chitinozoan biozonation on Avalonia? Research on microphytoplankton in the light of Self Organized historical type areas and other U.K. key sections. Criticality. Abstracts, XI International Palynological Abstract for the Avalonia-Moesia Symposium and Congress, Granada, Spain. Polen 14, 137-138. Workshop on the Early Palaeozoic orogens of the Vecoli, M. and Le Hérissé, A. 2004. Biostratigraphy, Trans-European Suture Zone, Ghent/Ronse 9-12 taxonomic diversity, and patterns of morphological october 2004, p. 38-39. evolution of Ordovician acritarchs (organic-walled Vanguestaine, M., Breuer, P. and Lehnert, O. 2004. microphytoplankton) from the northern Gondwana Discovery of an Early Ordovician conodont fauna in margin in relation to palaeoclimatic and the Salm Group of the Stavelot Inlier, Belgium. palaeogeographic changes. Earth-Science Reviews 67 Bulletin de l’Institut royal des Sciences naturelles de (3-4), 267-311; Elsevier, Amsterdam. Belgique, Sciences de la Terre, 74: 39-48. Vecoli, M. and Le Hérissé, A. 2004. Acritarch High- Van Iten, H. and Vyhlasová Z., 2004. Conulariids. Impact-Biostratigraphy in the Ordovician of North In Barry D. Webby, Florentin Paris, Mary L Droser, Gondwana. Abstracts, 5ème séminaire de Géologie and Ian G. Percival: The Great Ordovician Pétrolière, Boumerdes, Algeria. Biodiversification Event. Columbia University Press, Vecoli, M., Al-Ruwaili, M. and Le Hérissé, A. 2004. New York: 119-123. Palaeobiological and palaeoenvironmental Van Iten, H., Vyhlasová, Z., Zhu, M.-Y. and Yi Q. significance of cryptospores and acritarchs from the (in press). New data on the skeletal microstructure of Llanvirn of Saudi Arabia. IGCP N° 503 meeting: conulariids. Journal of Palaeontology. Early Palaeozoic Palaeogeography and Palaeoclimate, Vanmeirhaeghe, J. 2004. Upper Ordovician Erlangen, Germany; 1-3 September 2004. Erlanger chitinozoans from the central part of the Condroz Geologische Abhandlungen, Sonderband 5, p. 72. Inlier (Belgium, Avalonia). Abstracts for the ninth Vecoli, M., Tongiorgi, M., Quintavalle, M. and International Palynological Congress, 4-9 July 2004, Massa, D. 2004. Palynological contribution to the Granada. Polen, 14, 141 –142. Cambro-Ordovician stratigraphy of NW Ghadamis Vanmeirhaeghe, J. and Verniers, J. 2004. Basin (Libya and Tunisia). In: M.J., Salem and K.M., Chitinozoan bio-and lithostratigraphical study of the Oun (eds.). Sedimentary Basins of Libya, Second Ashgill Fosses and Génicot Formations (Condroz Symposium, Geology of Northwest Libya. Gutenberg Inlier, Belgium). Review of Palaeobotany and Press Ltd, Malta; pp. 110-125. Palynology 130/1-4: 241-267. Verniers, J. and Nielsen, A.T. 2004. Chitinozoan Vanmeirhaeghe, J., Storme, A., Van Noten. K., biozonation around the Ordovician-Silurian Van Grootel, G. and Verniers, J. 2004. Local boundary: comparison of the GSSP at Dob’s Linn chitinozoan biozonation of the Upper Ordovician of (Scotland, U.K.) with the graptolite dated Lönstorp the Fauquez area (Brabant Massif, Belgium). Abstract core (Scania, Sweden). Abstract of the XI for the Avalonia-Moesia Symposium and Workshop International Palynological Congress, Granada 4-9 on the Early Palaeozoic orogens of the Trans- July 2004, in Polen, 14, pp 142-143.

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Verniers, J., Debacker, T., Vanmeirhaeghe, J. and (edits.). The Great Ordovician Biodiversification Sintubin, M. 2004. Review of the Anglo-Brabant Event. Critical Moments and Perspectives in Deformation Belt: advances after the PACE network. Paleobiology and Earth History Series. Columbia Abstract for the Avalonia-Moesia Symposium and University Press, New York: 41-47. Workshop on the Early Palaeozoic orogens of the Webby, B.D., Droser, M. and Paris, F. 2004. Final Trans-European Suture Zone, Ghent/Ronse 9-12 Report of IGCP Project 410 (1997-2002) “The Great October 2004, p. 43-45. Ordovician Biodiversification Event”. Episodes, 27, Verniers, J., Vandenbroucke, T. and 3: 203-208. Vanmeirhaeghe, J. 2004. Comparison of Webby, B.D., Elias, R.J. Young, G.A., Neuman, chitinozoans of the Ordovician/Silurian transition B.E.E. and Kaljo, D. 2004. Corals. In B.D.Webby, from Avalonia, Laurentia and Northern Gondwana. F. Paris, M.L. Droser and I.G. Percival (edits.). The Résumes du 5eme Séminaire de Géologie Pétrolière, Great Ordovician Biodiversification Event. Critical 18-20 Janvier, CRD Sonatrach, Algérie. Moments and Perspectives in Paleobiology and Earth Viira, V., Löfgren, A. and Mens, K. 2004. History Series. Columbia University Press, New Sedimentation, erosion and redeposition of York: 124-146. sediment and conodont elements in the upper Webby, B.D., Mángano, M.G. and Buatois, L.A. Tremadoc boundary beds of Cape Pakri, (eds.). 2004. Trace fossils in evolutionary NW Estonia. In: Hints, O. and Ainsaar, L. (eds.). palaeoecology. Proceedings of Session 18 (Trace WOGOGOB-2004 Conference Materials. Tartu Fossils) of the First International Palaeontological University Press, Tartu. p. 100. Congress, Sydney, Australia. Fossils and Strata 51: i- Westphal, H. and Munnecke, A. 2003. Limestone- v, 1-153. marl alternations - A warm-water phenomenon? Webby B.D., Paris F., and Droser M.L. 2004. Final Geology, 31(3): 263-266. Report of IGCP 410 (1997-2002) - The Great Wang Xiao-feng, Chen Xiao-hong, Wang Chuan- Ordovician Biodiversification Event. Episodes 27 (3): shan and Li Zhi-hong, 2004, Ordovician to the 203-208. Lowest Silurian choronostratigraphic subdivision in Webby, B.D., Paris, F., Droser, M.L. and Percival, China. Journal of Stratigraphy, 28(1): 1-17 (in Chinese I.G. (eds.). 2004. The Great Ordovician with English abstract). Biodiversification Event. Columbia University Press, Wang Xiaofeng, Svend Stouge, Bernd- New York: 1-484. D.Erdtmann, Chen XiaohongLi Zhihong, Wang Wheeley, J.R., Cherns, L. and Wright, V. P. 2004. Chuanshang, Zeng Qingluan, Zhou Zhiqiang and The Ordovician Baltoscandian epeiric sea - Chen Huiming. 2004. A proposed GSSP for the base taphonomy and early diagenesis of its carbonate of the Middle Ordovician Series: the Huanghuachang sediments. Erlanger geologische Abhandlungen, section, Yichang, China, International Subcommission Sonderband 5, 75-76. on Ordovician Stratigraphy, web site. Wicander, R. 2004. A review of Ordovician Wang, Xiaofeng and Chen, Xioahong. 2004. Laurentian acritarch assemblages and their relevance Ordovician chitinozoan diversification events in to palaeogeographic and biodiversification trends. China. Science in China, Ser.D Earth Sciences, Memoirs of the Association of Australasian 47(10): 874-879. Palaeontologists, 29: 245-251. Wang, Chuanshan and Wang, Xiaofeng. 2004. A Wilson, M.A. 2004. Cornulitids, coleoloids and revision of Late Ordovician Tangyagraptus (graptolite) sphenothallids. In: Webby, Droser and Paris (eds.), in eastern Yangtze Gorges area. Acta Geoscientica The Great Ordovician Biodiversification Event. Sinica, 25(1): 47-51 (in Chinese with English Wilson, R.A, Burden, E., Bertrand, R., Asselin, E., abstract). McCracken, A.D. 2004. Stratigraphy and Tectono- Webby B.D. 2004. Introduction. In B.D.Webby, F. sedimentary Evolution of the Late Ordovician to Paris, M.L. Droser and I.G. Percival (edits.). The Middle Devonian Gaspé Belt in northern New Great Ordovician Biodiversification Event. Critical Brunswick: Evidence from the Restigouche Area. Moments and Perspectives in Paleobiology and Earth Canadian Journal of Earth Sciences 41: 527-551. History Series. Columbia University Press, New York: Yochelson, E.L. 2004. The record of the early 1-37. "Scaphopoda" (?Mollusca) reevaluated. Ann. Webby, B.D. 2004. Stromatoporoids. In B.D.Webby, Naturhist. Museum Wien. 106-A: 13-31. F. Paris, M.L. Droser and I.G. Percival (edits.). The Zalasiewicz, J., Rushton, A., Vandenbroucke, T., Great Ordovician Biodiversification Event. Critical Verniers, J, Stone; P. and Floyd, J. 2004. Moments and Perspectives in Paleobiology and Earth Submission of Hartfell Score (south Scotland) as a History Series. Columbia University Press, New York: GSSP for the base of the middle stage of the Upper 112-118. Ordovician Series. Website ISOS: Webby, B.D., Cooper R.A. Bergström and F. Paris. http://www.ordovician.cn/down/HartfellGSSP.pdf 2004. Stratigraphic framework and time slices. In Zhan, Ren-bin, Rong, Jia-yu, Cheng Jin-hui, and B.D.Webby, F. Paris, M.L. Droser and I.G. Percival Chen, Peng-fei. 2004. Early-Mid Ordovician

39 ORDOVICIAN NEWS Nº 22 brachiopod diversification in South China. Science in central New South Wales, Australia. Courier China Ser. D Earth Sciences, 34(10): 896-907. (in Forschunginstitut Senckenberg, 245: 39-73. Chinese). Zhen, Y.-y., Percival, I.G. and Webby, B.D. 2004b. Zhan, Ren-bin, Rong, Jiayu, Cheng, Jinhui and Conodont faunas from the Mid to Late Ordovician Chen, Pengfei. 2004. Preliminary study on the Early boundary interval of the Wahringa Limestone to Mid Ordovician brachiopod biodiversification of Member (Fairbridge Volcanics), central New South South China. Science in China (Series D), 34 (10): Wales. Proceedings of the Linnean Society of New 896-907. South Wales, 125: 141-164. Zhang, J. and Barnes, C.R. 2004. Late Ordovician Zuykov, M.A. 2003. Questions of morphology and conodonts from the Stokes Siltstone, Amadeus Basin, taxonomy of the brachiopod genus Platystrophia. central Australia. In: Second Australian Conodont Proceedings of St. Petersburg State University. Ser.7. Symposium, Eds: R.Mawson and J.A.Talent, Courier Geology. 4 (31), p. 29-36. Forschungsinstitut Senkenberg, Bd. 245, p. 1-38 Zuykov, M.A. and Harper, D.A.T. 2004. Case (2003). 3290. Platystrophia King, 1850 (Brachiopoda, Zhang, S. and Barnes, C.R. 2004. Conodont Orthida): proposed conservation of usage by bioevents, cladistics and response to glacio-eustasy, designation of Porambonites costata Pander, 1830 Ordovician-Silurian boundary through Llandovery, (currently Platystrophia costata) as the type species of Anticosti Basin, Québec. In: The palynology and Platystrophia. Bulletin of Zoological Nomenclature micropaleontology of boundaries, A.B. Beaudoin and 61, 1-5. M.J. Head (Eds.), Geological Society, London, Zuykov, M.A. and Harper D.A.T. 2004. Special Publications 230, 73-104. Platystrophia King, 1850 (Brachiopoda, Orthida): Zhang, S. and Barnes, C.R. 2004. Late Cambrian proposed conservation of usage by designation of and Early Ordovician conodont communities from Porambonites costata Pander, 1830 (currently platform and slope facies, western Newfoundland: a Platystrophia costata) as the type species of statistical approach. In: The palynology and Platystrophia. Bulletin of Zoological Nomenclature, micropaleontology of boundaries, A.B. Beaudoin and 61 (4), 246-250. M.J. Head (Eds.), Geological Society, London, Special Publications, 230, 47-72. Zhang, S. and Barnes, C.R. 2004. Arenigian (Early NAMES AND ADDRESS CHANGES Ordovician) sea level history and the response of conodont communities, western Newfoundland. Galina P. ABAIMOVA Canadian Journal of Earth Sciences, 41, 843-865. Dept. of Stratigraphy and Paleontology Zhang, S. Barnes, C.R., and Jowett, D.M.S. 2004. SNIIGGIMS Differentiating sea level events across Laurentia in the Krasnyi Prospect, 67 Early Silurian using the pattern of conodont Novosibirsk-9, 630091 communities. Joint annual meeting of the Geological RUSSIA Association of Canada and Mineralogical Association E-mail: [email protected] of Canada, Program with Abstracts CD. Zhang, yuandong and Erdtmann, B.-D.. 2004. Florencio G. ACEÑOLAZA Astogenetic aspects of the dendroid graptolite INSUGEO Airograptus (Late Cambrian—Early Ordovician) and Universidad Nacional de Tucumán their phylogenetic implications. Lethaia, 37(4): 357- Miguel Lillo 205 365. 4000 San Miguel de Tucumán Zhang, Yuandong and Erdtmann, B.-D. 2004. Late ARGENTINA Tremadoc (Ordovician) biostratigraphy and graptolites Tel.: 54-(0)381-4352767 at Dayangcha of Baishan, NE China. Paläontologische Fax: 54-(0)381-4352767 Zeitschrift, 78(2): 323-354. E-mail: 1) [email protected] Zhen, Y.-y. and Percival, I.G. 2004a. Middle 2) [email protected] Ordovician (Darriwilian) conodonts from allochthonous limestones in the Oakdale Formation of Guillermo F. ACEÑOLAZA central New South Wales. Alcheringa, 28: 77-111. INSUGEO Zhen, Y.-y. and Percival, I.G. 2004b. Darriwilian Universidad Nacional de Tucumán (Middle Ordovician) conodonts from the Weemalla Miguel Lillo 205 Formation, south of Orange, New South Wales. 4000 San Miguel de Tucumán Memoirs of the Association of Australasian ARGENTINA Palaeontologists, 30: 153-178. Tel.: 54-(0)381-4352767 Zhen, Y.-y., Percival, I.G. and Webby, B.D. 2004a. Fax: 54-(0)381-4352767 Early Ordovician (Bendigonian) conodonts from E-mail: [email protected]

40 ORDOVICIAN NEWS Nº 22

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Richard Arnold DAVIS Kerstin DROST College of Mount St. Joseph State Collections of Natural History Dresden 5701 Delhi Road Museum of Mineralogy and Cincinnati Geology Dresden (Research Centre) Ohio 45233-1670

44 ORDOVICIAN NEWS Nº 22

Königsbrücker Landstraße 159 Tel.: 859-257-6232, 257-1401 Dresden D-01109 Fax: 859-323-1938 GERMANY E-mail: [email protected] Tel.: 0049-351-8926419 Fax: 0049-351-8926404 Kevin Ray EVANS E-mail: [email protected] Geography, Geology, and Planning Southwest Missouri State University Svetlana DUBININA 901 S. National Avenue Geological Institute Springfield, Missouri 65804 Russian Academy of Sciences USA Pyzhevsky per. 7 Tel.: 1-417-866-7003 109017 Moscow E-mail: [email protected] RUSSIA URL: http://www.stratigraphix.com E-mail: [email protected] Junxuan FAN Bob ELIAS Nanjing Institute of Geology and Palaeontology, CAS Department of Geological 39 East Beijing Road, Nanjing 210008 Sciences, University of Manitoba, Winnipeg P.R. China Manitoba, R3T 2N2 Tel: 86-25-83282183 CANADA Fax: 86-25-83375157 Tel.: (204) 474-8862 Email: [email protected] Fax: (204) 474-7623 E-mail: [email protected] Oldrich FATKA Charles University, Institute of Geology and Bernd-D. ERDTMANN Palaeontology Technical University Berlin, Sekr. EB 10 Albertov 6, 128 43 Prague 2, D-10587 Berlin Czech Republic. GERMANY Tel.: 420 2 2195 1452 Tel.: 49-30-314-23582 Fax: 420 2 2195 1462 Fax: 49-30-314-79471 E-mail: [email protected] E-mail: [email protected] URL: http://www.tu- Petr V. FEDOROV berlin.de/fb9/palaeontologie/projekt.htm Department of Historical Geology Geological Faculty, St.Petersburg State University Victoria B. ERSHOVA Universitetskaya Embankment 7/9 Department of Historical Geology 199034, St.Petersburg Geological Faculty, St.Petersburg State University RUSSIA Universitetskaya Embankment 7/9 Tel.: (812) 328 94 80 199034, St.Petersburg Fax: (812) 328 44 18 RUSSIA E-mail: [email protected] Tel.: (812) 328 94 80 Fax: (812) 328 44 18 Hongzhen FENG E-mail: [email protected] Department of Earth Sciences, Nanjing University, Hankou Road 22, Nanjing 210093, China Susana B. ESTEBAN Tel.: 0086-25-86207986 INSUGEO Fax: 0086-25-83686016 Universidad Nacional de Tucumán E-mail: [email protected] Miguel Lillo 205 4000 San Miguel de Tucumán Annalisa FERRETTI ARGENTINA Dipartimento del Museo di Paleobiologia E-mail: [email protected] e dell¹Orto Botanico Via Università 4 Frank R. ETTENSOHN 41100 Modena Department of Geological Sciences ITALY University of Kentucky Tel.: 39-059-2056527 101 Slone Building Fax: 39-059-2056535 Lexington, KY 40506-0053 E-mail: [email protected]

Stanley C. FINNEY

45 ORDOVICIAN NEWS Nº 22

Dept. of Geological Sciences IRAN California State University - Long Beach Tel.: 0098 311 6500590 Long Beach, CA 90840 Fax: 0098 311 7932152 USA E-mail: 1) [email protected] Tel: 1 (562) 985-8637 2) [email protected] Fax: 1 (562) 985-8638 E-mail: [email protected] Yakut GONCUOGLU Kafkas Sitesi, 411.sok. No 65 James FLOYD 06530 Cayyolu-Ankara British Geological Survey TURKEY Murchison House, West Mains Road Tel.: 90-312-2352631 Edinburgh, Scotland, EH9 3LA Fax: 90-312-2101263 UK E-mail: [email protected] Tel.: 44 (0)131-650-0299 Fax: 44 (0)131-668-1535 Alexander GUBANOV E-mail: [email protected] Historical Geology and Palaeontology Department of Earth Sciences Richard FORTEY Uppsala University Department of Palaeontology Norbyvagen 22 The Natural History Museum S-752 36 Uppsala and Dept. of Zoology, Oxford University SWEDEN Cromwell Rd Tel.: (46)18 471 27 40 London SW7 5BD Fax: (46)18 471 27 49 UK E-mail: [email protected] Tel: 44(0)207 942 5493 Fax: 44(0)207 942 5546 Juan Carlos GUTIÉRREZ-MARCO E-mail: [email protected] Instituto de Geología Económica (CSIC-UCM) Facultad de Ciencias Geológicas Robert C. FREY 28040 Madrid Ohio Department of Health SPAIN Bureau of Environmental Health and Toxicology Tel.: 34-915 44 54 59 246 N. High Street, P.O. Box 118 Fax: 34-913 94 48 49 Columbus, Ohio 43216-0118 E-mail: [email protected] USA URL: http://www.ucm.es/info/paleo/ Tel.: (614) 466-1069 personal/gutierrez.htm Fax: (614) 644-7740 E-mail: [email protected] Wolfgang HAMMANN Ahornstr. 3 Åsa FRISK 97535 Wasserlosen Palaeobiology, Department of Earth Sciences, Uppsala GERMANY University, Norbyvägen Tel.-Fax: 0049/972672362 22, 752 36 Uppsala E-mail: [email protected] SWEDEN Tel.: 46 18 471 2740 David A.T. HARPER Fax: 46 18 471 2749 Geological Museum E-mail: [email protected] University of Copenhagen Øster Voldgade 5-7 Robert GANIS DK-1350 Copenhagen K Post Office Box 6128 DENMARK Harrisburg, Pennsslvania 17112 Tel.: 45 35322371 USA Fax: 45 35322325 Tel.: 717 566 9668 E-mail: [email protected] Fax: 717 566 7768 URL: http://www.geological-museum.dk E-mail: bobganis@ aol.com Mark T. HARRIS Mansooreh GHOBADI POUR College of Letters and Science Department of Geology University of Wisconsin-Milwaukee University of Esfahan Esfahan, 81746

46 ORDOVICIAN NEWS Nº 22

P. O. Box 413 Tel.: 46 (0)18 471 2736 Milwaukee, WI 53201 Fax: 46 (0)18 471 2749 USA E-mail: [email protected] Tel.: 414-229-2925 Fax: 414-229-6827 Warren D. HUFF E-mail: [email protected] Department of Geology University of Cincinnati Susana HEREDIA Cincinnati, OH 45221-0013 Museo de Geología y Paleontología USA Universidad Nacional del Comahue Tel.: 513-556-3731 Buenos Aires 1400 Fax: 513-556-6931 8300 Neuquén URL: http://ucaswww.mcm.uc.edu/geology/huff/ ARGENTINA huffpage/huff.html Tel.: 54-(0)299-4490-393 E-mail: [email protected] Mario A. HÜNICKEN CRILAR Achim D. HERRMANN Mendoza y Entre Ríos Earth and Environmental Sciences 5301 Anillaco George Washington University ARGENTINA 2029 G St. - Room B01C1 Tel: 54-(0)3827-494285 Washington, DC 20052 Fax: 54-(0)3827-494231 USA E-mail: [email protected] Tel.: (202) 994-2499 E-mail: [email protected] Dennis JACKSON 24 Shepherds Way, Thomas HEUSE Stow On The Wold, Thüringer Landesanstalt für Umwelt und Geologie Gloucestershire, L54 1EA PF 24 UK D-07727 Jena Email: [email protected] GERMANY Tel.: (49-3641) 684-613 Jisuo JIN Fax: (49-3641) 684-666 Department of Earth Sciences E-mail: [email protected] University of Western Ontario London, Ontario, N6A 5B7 Linda HINTS CANADA Institute of Geology at Tallinn Technical University Tel.: (519) 661-4061 Estonia Boulevard 7 Fax: (519) 661-3198 10143 Tallinn E-mail: [email protected] ESTONIA Tel.: 372 6454649 Dimitri KALJO Fax: 372 (6) 312074 Institute of Geology E-mail: [email protected], [email protected] Tallinn Technical University 7 Estonia Blvd., 10143 Tallinn Olle HINTS ESTONIA Institute of Geology at Tallinn Technical University Tel.: (372) 6454653 Estonia Ave 7 Fax: (372) 6312074 10143 Tallinn E-mail: [email protected] ESTONIA Tel.: 372 513 01 57 Alexander V. KANYGIN Fax: 372 6312074 Russian Academy of Science E-mail: [email protected] Siberian Branch URL: http://gaia.gi.ee/~olle Institute of Petroleum Geology Novosibirsk State University Anette HÖGSTRÖM 630090, Novosibirsk, Russia Dept. of Earth Sciences av. Koptyg 3 Palaeobiology Institute of Petroleum Geology Norbyvägen 22 Tel: 3832-332901 SE - 752 36 Uppsala Fax: 3832-332301 SWEDEN E-mail: [email protected]

47 ORDOVICIAN NEWS Nº 22

Faculty of Sciences Steve KERSHAW Institute of Geology and Palaeontology Department of Geography and Earth Sciences Albertov 6 Brunel University CZ-128 43 Praha 2 Uxbridge, Middlesex, UB8 3PH CZECH REPUBLIC UK Tel.: 420 2 21951459 E-mail: [email protected] Fax: 420 2 2195 1452 E-mail: [email protected] Marcus M. KEY, Jr. Department of Geology Ed LANDING P.O. Box 1773 Center for Stratigraphy and Paleontology Dickinson College New York State Museum Carlisle, PA 17013-2896 State Education department USA Albany, NY 12230 Tel.: 1-717-245-1448 USA Fax: 1-717-245-1971 Tel.: 518-474-5816 E-mail: [email protected] Fax: 518-486-2034 URL: http://www.dickinson.edu/departments/ E-mail: [email protected] geol/faculty_staff http://www.nhm.ac.uk/hosted_sites/iba/current4.html Bertrand LEFEBVRE Biogéosciences - Université de Bourgogne Tarmo KIIPLI 6, boulevard Gabriel ESTONIA F-21000 Dijon E-mail: [email protected] FRANCE Tel.: 33 380 393970 Lutz KOCH Fax: 33 380 396387 Heinrich-Heine-Strasse 5 E-mail: [email protected] D-58256 Ennepetal GERMANY Philippe LEGRAND Tel.: 49(0)2333 76700 Tauzia 216 cours Fax: 49(0)2333 974332 General de Gaulle, 33170 E-mail: [email protected] Gradignan URL: http://www.l-koch.de FRANCE Tel.: (0)5 56 89 33 24 Tatiana KOREN´ Fax: (0)5 56 89 33 24 All-Russia Scientific Research Geological Institute E-mail: [email protected] (VSEGEI) Srednii prospect 74 Oliver LEHNERT 199106, St Petersburg Institut für Geologie und Mineralogie RUSSIA Universität Erlangen E-mail: [email protected] Schlossgarten 5 D-91054 Erlangen Huseyin KOZLU GERMANY TPAO Exploration Group Tel.: 49-9131-8522632 Ankara Fax: 49-9131-8529295 TURKEY E-mail: [email protected] E-mail: [email protected] Alfred LENZ Department of Earth Sciences Jaroslav KRAFT University of Western Ontario West Bohemian Museum London, ON N6A 5B7 Kopeckeho sady 2 CANADA CZ-301 36 Plzen Tel.: (519) 661 3195 CZECH REPUBLIC Fax: (519) 661 3198 Tel.-Fax: 420 19 7237604 E-mail: [email protected] E-mail: [email protected] Stephen A. LESLIE Petr KRAFT Department of Earth Sciences Charles University in Prague University of Arkansas

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2801 South University Natalia LUBNINA Little Rock, Arkansas 72204-1099 Geological Department USA Moscow State University Tel.: 501 569-8061 Leniskiye Gory Fax: 501 569-3271 Moscow 119992 Russia E-mail: [email protected] Tel.: +7 (095) 9392551 Fax: +7 (095) 939 2551 Jun LI E-mail: [email protected] Nanjing Institute of Geology and Palaeontology Academia Sinica M. Gabriela MÁNGANO Nanjing 210008 Department of Geological Sciences CHINA University of Saskatchewan Tel.: 86-25-3282153 114 Science Place Fax: 86-25-3357026 Saskatoon E-mail: 1) [email protected] SK S7N 5E2 2) [email protected] CANADA Tel.: 1-306-966-5730 Yue LI Fax: 1-306-966-8593 State Key Laboratory of Paleobiology E-mail: [email protected] and Stratigraphy Nanjing Institute of Geology and Palaeontology Patrick MCLAUGHLIN Chinese Academy of Sciences Department of Geology 39 East Beijing Road, Nanjing, 210008 University of Cincinnati CHINA Cincinnati, OH 45221 (current address: Department of Earth and Planetary Tel.: 513-556-3732 Science, University of Tokyo, Hongo 7-3-1 Bunkyo- E-mail: [email protected] ku, Tokyo 113-0033. Phone: 81-3-5841-4081; email: [email protected]) Jorg MALETZ Department of Geology Ulf LINNEMANN State University of New York at Buffalo State Museum of Mineralogy and 772 Natural Sciences and Mathematics Complex Geology of Dresden Buffalo, New York 14260-3050 Königsbrücker USA Landstraße 159, Dresden, D-01109 Tel.: 716 645-6800 ext. 3996 GERMANY Fax : 716 645-3999 Tel.: 49-351-8926403 E-mail: [email protected] Fax: 49-351-8926404 E-mail: [email protected] María Gabriela MÁNGANO INSUGEO Anita LÖFGREN Casilla de correo 1 Dept. of Geology 4000 San Miguel de Tucumán Lund University ARGENTINA Sölvegatan 12 Tel.: 54-381-4253053 SE-223 62 Lund Fax: 54-381-4253053 SWEDEN E-mail: [email protected] Tel.: 46-46-222 78 68 Fax.: 46-46-222 44 19 Peep MÄNNIK E-mail: [email protected] Institute of Geology Tallinn Technical University Greg A. LUDVIGSON Estonia Ave 7 Iowa DNR Geological Survey 10143 Tallinn 109 Trowbridge Hall ESTONIA Iowa City, IA, 52242-1319 Tel.: 372 6 454 189 USA Fax: 372 6 312 074 Tel.: 319-335-1761 E-mail: [email protected] Fax: 319-335-1761 E-mail: [email protected] Alexander D. MCCRACKEN Geological Survey of Canada 3303-33rd St. NW Calgary

49 ORDOVICIAN NEWS Nº 22

Alberta T2L 2A7 E-mail: [email protected] CANADA Tel.: 403-292-7130 Tatiana L. MODZALEVSKAYA Fax: 403-292-4961 All-Russian Geological Research Institute (VSEGEI) E-mail: [email protected] Sredny pr. 74 St.Petersburg, 199106 Sören MEISEL RUSSIA Environment Office and Geological Survey of Saxony Tel.: (812)328-92-33 Dep. 6 / 61 - Pedology and Geochemistry Fax: (812) 328-92-82 Halsbruecker Str. 31 a E-mail: 1) [email protected] 09599 Freiberg 2) [email protected] GERMANY Tel.: 49-(0)3731-294-186 Julien MOREAU Fax: 49-(0)3731-229-18 CGS, Institut de Géologie E-mail: [email protected] 1, rue de Blessig 67084 Strasbourg CEDEX France Sergey V. MELNIKOV Tel. : 33 3 90 24 04 80 55-71, Lenin pr., Ukhta, 169300 Fax. : 33 3 90 24 04 02 Komi Rep., E-mail:[email protected] RUSSIA Tel.: 7'82147-12336 M. Cristina MOYA E-mail: [email protected] Facultad de Ciencias Naturales Universidad Nacional de Salta Michal MERGL 4400 Salta Department of Biology ARGENTINA University of West Bohemia E-mail: [email protected] Klatovská 51 306 19 Plzeň Axel MUNNECKE CZECH REPUBLIC Institute of Palaeontology Tel.: 420 377636240 University Erlangen-Nuremberg Fax: 420 377636256 Loewenichstrasse 28 E-mail: [email protected] D - 91054 Erlangen GERMANY Radek MIKULÁŠ Tel.: 49 (0)9131 - 85 26957 Institue of Geology, Academy of Science Fax: 49 (0)9131 - 85 22690 Rozvojova 135, 165 00 E-mail: [email protected] Praha 6 CZECH REPUBLIC Elise NARDIN Tel.: 420-2-330 87 219 UMR-CNRS 5561 Biogéosciences Fax: 420-2-209 22 670 Université de Bourgogne E-mail: [email protected] 6 bd Gabriel 21000 Dijon - France James F. MILLER Tel. : 33 3.80.39.63.82 Geography, Geology, and Planning Fax : +33 3.80.39.63.87 Southwest Missouri State University E-Mail : [email protected] Springfield, MO 65804-0089 USA Robert S. NICOLL Tel.: 417-836-5447 29 Hooper Crescent Fax: 417-836-6006 Flynn, ACT 2615 E-mail: [email protected] AUSTRALIA Tel.: 61 2 6258-4140 Charles E. MITCHELL Email: [email protected] Department of Geology Box 603050 Jaak NOLVAK SUNY at Buffalo Institute of Geology at Buffalo, NY 14260-3050 Tallinn Technical University USA Estonia Blvd. 7 Tel.: (716) 645-6800 ext. 3991 10143 Tallinn Fax: (716) 645-3999 ESTONIA

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Tel.: 372 6454 677 British Geological Survey Fax: 372 6312 074 Keyworth, Nottingham NG12 5GG, E-mail: [email protected] UK Tel.: 44-115-9363263 Godfrey S. NOWLAN Fax: 44-115-9363302 Geological Survey of Canada E-mail: [email protected] 3303 -33rd Street NW Calgary, Alberta T2L 2A7 Florentin PARIS CANADA Sédimentologie et Paléontologie Tel.: 403-292-7079 UPR du CNRS “Géosciences” Fax: 403-292-6014 Université de Rennes I E-mail: [email protected] 35042 Rennes-cedex FRANCE Gladys ORTEGA Tel.: 02 99 28 69 89 Museo de Paleontología Fax: 02 99 28 61 00 Universidad Nacional de Córdoba E-mail: [email protected] Casilla de Correo 1598 URL: http://www.geosciences.univ- 5000 Córdoba rennes1.fr/www/ch/paris/Default.htm ARGENTINA Tel.: 54-(0)351-4719575 Matthew A. PARKES E-mail: [email protected] Irish Geological Heritage Geological Survey of Ireland Alan W. OWEN Beggars Bush, Haddington Road Division of Earth Sciences Dublin 4 University of Glasgow IRELAND Gregory Building, Lilybank Gardens Tel.: 353 (0)1-6041493 (direct), 6707444 ext 1493 Glasgow G12 8QQ E-mail: [email protected] Scotland UK Helje PÄRNASTE Tel.: 44 (0)141 330 5461 Institute of Geology, Tallinn Technical University Fax: 44 (0)141 330 4817 Estonia Blvd. 7 E-mail: [email protected] 10143 Tallinn URL: http://www.earthsci.gla.ac.uk ESTONIA Tel.: 372 6454678 Robert M. OWENS Fax: 372 6312074 Department of Geology E-mail: [email protected] National Museum of Wales URL: http:/www.gi.ee/~helje Cardiff CF10 3NP, Wales UK Silvio H. PERALTA Tel: 44 (0)29 2057 3255 Instituto de Geología (INGEO) Fax: 44 (0)29 2066 7332 Facultad Ciencias Exactas, Físicas y Naturales E-mail: [email protected] Universidad Nacional de San Juan. Avda. José Ignacio de la Roza y calle Meglioli Joseph F. PACHUT 5400 Rivadavia - San Juan Dept. of Geology, IUPUI ARGENTINA 723 West Michigan Street Tel.-Fax: 54-264 -4265103 Indianapolis, IN 46227 E-mail: [email protected] Tel.: (317) 274-7785 Fax: (317) 274-7966 Ian PERCIVAL E-mail: [email protected] State Geoscience Centre 947-953 Londonderry Road, Londonderry 2753 Miguel A. PALMA New South Wales, Australia Diagonal 78 Nº 141, 1º “B” Tel.: 61-2-4777-4316 1900 La Plata Fax: 61-2-4777-4397 ARGENTINA E-mail: 1) [email protected] Tel.: 00-54-221-424 8580 2) [email protected] E-mail: [email protected] José Manuel PIÇARRA Robert PANKHURST Geological and Mining Institut

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Ap. 104, 7802 Beja Codex USA PORTUGAL Tel.: 703-648-5486 Tel.: 351 284 311310 Fax: 703-648-6953 Fax: 351 284 325974 E-mail: 1) [email protected] (office) E-mail: [email protected] 2) [email protected] (home)

Teresa PODHALANSKA Robert RIPPERDAN Polish Geological Institute Department of Earth and Atmospheric Sciences Geological Museum Saint Louis University 00-975 Warszawa 208 Macelwane Hall Rakowiecka 4 3507 Laclede Avenue POLAND Saint Louis, MO 63103 Tel.: (48-22) 849 53 51 USA Fax: (48 22) 849 53 42 E-mail: 1) [email protected] E-mail: [email protected]. 2) [email protected]

Leonid E. POPOV John F. RIVA Department of Geology Quebec Geoscience Centre/ National Museum and Galleries of Wales Centre géoscientifique de Québec Cathays Park, Cardiff CF1 3NP University of Quebec UK 880, chemin Ste-Foy, Suite 800 Tel.: 44 (0) 29 20573158 P.O. Box 7500 Fax: 44 (0)29 20667332 Ste-Foy, Quebec G1V 4C7 E-mail: [email protected] CANADA Tel.: 1 (418) 654-3177 (office) Leanne PYLE 1 (418) 653-8908 (residence) Department of Geological Sciences Fax: 1 (418) 654-2615 Queen's University E-mail: [email protected] Kingston, Ontario K7L 3N6 CANADA Michel ROBARDET Tel.: (613) 533-6000 extension 78496 Géosciences - Rennes / CNRS Fax: (613) 533-6592 Université de Rennes I E-mail: [email protected] Campus de Beaulieu - Bat.15 35042 - Rennes Cedex Jan Audun RASMUSSEN FRANCE Dept. of Stratigraphy Tel.: 33 2 99 28 61 05 Geological Survey of Denmark and Greenland Fax: 33 2 99 28 61 00 Øster Voldgade 10 E-mail: [email protected] DK-1350 Copenhagen K DENMARK David M. ROHR Tel.: 45 3814 2712 Department of Geological and Physical Sciences Fax: 45 3814 2050 Sul Ross State University E-mail: [email protected] 400 N. Harrison St. Alpine, TX 79832 Jürgen F. Von RAUMER USA Dept. of Earth Sciences Tel.: 432-837-8167 Fribourg University Fax: 915-837-8692 Pérolles, CH-1700 E-mail: [email protected] Fribourg SWITZERLAND Jia-yu RONG Tel.: 0041 26 300 8927 Nanjing Institute of Geology and Palaeontology Fax: 0041 26 300 9765 Academia Sinica E-mail: [email protected] 39 Beijing East Road Nanjing 210008 John E. REPETSKI CHINA U.S. Geological Survey Tel.: 86-25-3282169 (office) MS 926A National Center 86-25-3353990 (home) Reston, Virginia 20192 Fax: 86-25-3282169 E-mail: [email protected]

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Columbus, OH 43210-1398 June R. P. ROSS Tel.: 614-292-0481 Dept. of Biology Fax: 614-292-7688 MS 9160, Western Washington University E-mail: [email protected] Bellingham, Washington USA Teresa M. SÁNCHEZ E-mail: [email protected] Centro de Investigaciones Paleobiológicas (CIPAL) Facultad de Ciencias Exactas, Físicas y Naturales, Sergei Vladimirovich ROZHNOV Universidad Nacional de Córdoba Palaeontological Institute RAS Av. Vélez Sarsfield 299 Profsoyuznaya Str., 123 5000 Córdoba Moscow 117997 ARGENTINA RUSSIA Tel.: 54-(0)351-4332100 Tel.: 095 339 98 88 E-mail: [email protected] Fax: 095 339 12 66 E-mail: [email protected] Olof SANDSTRÖM Department of Geology, Historical Geology and Claudia V. RUBINSTEIN Palaeontology Unidad de Paleopalinologia Solvegatan 13, SE-223 62 Lund IANIGLA - CRICYT SWEDEN C.C. 131 Tel.: 46-2227865 5500 Mendoza Fax: 46-121477 ARGENTINA E-mail: [email protected] Tel: 54-261-4287029/4274011 Fax: 54-261-4285940 Ivan SANSOM E-mail: [email protected] School of Earth Sciences University of Birmingham Valeri SACHANSKI Birmingham B15 2TT Sofia 1113 UK Geological Institute Tel.: 44 (0)121 414 6147 Bulgarian Academy of Sciences Fax: 44 (0)414 4942 G.Bonchev Str., Bl.24 E-mail: [email protected] Bulgaria Tel.: 359 2 9792225 Graciela N. SARMIENTO Fax: 359 2 724638 Departamento y UEI de Paleontología E-mail: [email protected] Instituto de Geología Económica (CSIC-UCM) Facultad de Ciencias Geológicas María José SALAS E-28040 Madrid Centro de Investigaciones Paleobiológicas (CIPAL) SPAIN Fac. Cs. Ex., Fís. y Nat., Univ. Nac. Córdoba Tel.: 34-91-3944853 Vélez Sársfield 299 Fax: 34-91-3944849 5000 Córdoba E-mail: [email protected] ARGENTINA Tel.: 54-(0)351-4332100 Birger SCHMITZ E-mail: [email protected] Marine Geology, Earth Sciences Center Box 460, SE-40530 Goteborg José A. SALFITY SWEDEN Casilla de Correos 146 Tel.: 46-31-7734902 4400 Salta Fax: 46-31-7734903 ARGENTINA E-mail: [email protected]. Tel.: 54 387 425-1077 Currently: Fax: 54 387 425-1077 Wiess Visiting Professor E-mail: [email protected] Department of Earth Science-MS126 Rice University Matthew SALTZMAN P.O. Box 1892 Department of Geological Sciences Houston, Texas 77251-1892 275 Mendenhall Laboratory USA Ohio State University

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Tel.: 713-348-5088 PO Box 53, Orange E-mail: [email protected] New South Wales 2800 AUSTRALIA Nikolai Valerianovich SENNIKOV Tel.: 61 2 6392 6349 Institute Petroleum Geology, Siberian Brach of Fax: 61 2 6392 6363 Russian Academy of Science E-mail: [email protected] Av. Koptuyg, 3, Novosibirsk, 630090 RUSSIA Jana SLAVÍČKOVÁ Tel.: 7-3832-34-38-47 Department of Palaeontology Fax: 7-3832-33-23-01 National Museum E-mail: [email protected] Václavskénám. 68 115 79, Praha 1 Enrico SERPAGLI CZECH REPUBLIC Dipartimento del Museo di Paleobiologia e dell'Orto Tel.: 042-2-24497261 Botanico Fax: 2-24226488 Via Università 4 E-mail: [email protected] 41100 Modena ITALY Paul SMITH Tel.: 059-2056534 Lapworth Museum of Geology Fax.: 059-2056535 School of Earth Sciences E-mail: [email protected] University of Birmingham Birmingham B15 2TT Thomas SERVAIS UK Paleontologie - Sciences de la Terre Tel.: 44(0)1214144173 UPRESA 8014 CNRS, Cite Scientifique SN5 Fax: 44(0)1214144942 F-59655 Villeneuve d'Ascq Cedex E-mail: [email protected] FRANCE Tel.: 33 (0)3 20 33 72 20 Azzedine SOUFIANE Fax: 33 (0)3 20 43 69 00 INRS- Eau, Terre et Environnement E-mail: [email protected] Case postale 7500 URL: http://www.univ-lille1.fr/geosciences Sainte- Foy, Québec, G1V 4C7 CANADA Fred SHAW Fax: 418- 654-2615 Department of Geology and Geography E-mail: [email protected] Lehman College City University of New York James SPRINKLE Bronx, New York 10468 Department of Geological Sciences USA University of Texas Tel.: 718 960-8565 Austin, TX 78712 E-mail: [email protected] USA Tel.: (512) 471-4264 Peter M. SHEEHAN Fax: (512) 471-9425 Manegold Curatorial Chair E-mail: [email protected] Department of Geology Milwaukee Public Museum Carl W. STOCK 800 W. Wells St. Department of Geological Sciences Milwaukee, WI, 53233 USA University of Alabama E-mail: [email protected] Box 870338

Tuscaloosa, AL 35487-0338 John SHERGOLD USA La Freunie, Benayes Tel.: 205-348-1883 19510 Masseret Fax: 205-348-0818 FRANCE E-mail: [email protected] Tel.: 33 (0) 555 981242 E-mail: [email protected] Svend STOUGE Geological Survey of Denmark and Greenland Lawrence SHERWIN Thoravej 8 Geological Survey of New South Wales DK-2400 Copenhagen NV

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(note change of address - From about May 1st.: All-Russia Scientific Research Geological Institute Øster Voldgade 10, !350 Copenhagen K, DK-1350) (VSEGEI) DENMARK Srednii prospect 74 Tel.: 45 3814 2717 (note this number will be changed 199106, St Petersburg from about May 1st. New number is still not RUSSIA available). E-mail: [email protected] Fax: 45 3814 2050 E-mail: [email protected] Tatiana TOLMACHEVA Department of stratigraphy and paleontology Wenbo SU All-Russian Geological Institute (VSEGEI) Group of Paleontology and Stratigraphy, Sredny 74, 199106 St. Petersburg Faculty of Earth Sciences and Resources, RUSSIA China University of Geosciences (Beijing), Tel.: 812-323-92 10 Xueyuanlu 29 E-mail: [email protected] Beijing 100083 CHINA Blanca A. TORO Tel.: 086-010-82320625 Departamento de Geología y Paleontología E-mail: [email protected] IANIGLA, CRICYT Av. Ruíz Leal S/Nº Thomas J. SUTTNER 5500, Mendoza University of Vienna ARGENTINA Institute of Palaeontology Tel.: 0261-4287029/4274011 Althanstr. 14, 1090 Vienna Fax: 0261-4285940 AUSTRIA E-mail: [email protected] Tel.: 06767855192 E-mail: [email protected] Alexander V. TIMOKHIN Institute of Petroleum Geology Walter C. SWEET Av. Koptyg 3 630090, Novosibirsk (January to June) RUSSIA 8032 N. Casas Place, Tucson, AZ 85742 Tel: 3832-332901 USA Fax: 3832-332301 Tel.: (520) 742-3555 E-mail: [email protected] E-mail: [email protected] (June to December) M. Franco TORTELLO 3351 Mansion Way, Columbus, OH 43221 Departamento Paleontología Invertebrados USA Museo de Ciencias Naturales, Paseo del Bosque s/n Tel.: (614) 451-3555 1900 La Plata E-mail: [email protected] ARGENTINA E-mail: [email protected] Hubert SZANIAWSKI Polish Academy of Sciences Julie A TROTTER Institute of Paleobiology CSIRO Petroleum Twarda 51/55 Riverside Corporate Park 00-818 Warszawa Delhi Rd, North Ryde, NSW POLAND PO Box 136, North Ryde, NSW, 1670 Tel.: 48-22-643 41 69 AUSTRALIA Fax: 48-22-620 62 25 Tel.: 61 2 9490 8739 E-mail: [email protected] Fax: 61 2 9490 8197 E-mail: [email protected] John F. TAYLOR Geoscience Department Susan TURNER Indiana University of Pennsylvania Queensland Museum Indiana, Pennsylvania, 15705 122 Gerler Road, Hendra, Qld 4011 USA AUSTRALIA Tel.: (724) 357-4469 Tel.: 61 (0)734068348 Fax: (724) 3576208 Fax: 61 (0)734068355 E-mail: [email protected] Tatiana TOLMACHEVA

55 ORDOVICIAN NEWS Nº 22

E-mail: [email protected] Jacques VERNIERS Ghent University, Dept. Geology and Pedology, Lab. Marioara VAIDA Palaeontology, Krijgslaan 281 S8 Geological Institute of Romania B-9000 Gent 1 Caransebes St., sector 1, BELGIUM Bucharest 32, 78 344 Tel.: 32 9 264 46 14 ROMANIA Fax. : 32 9 264 46 08 Tel.: 40 2224175, 40 212242093 E-mail: [email protected] Fax: 40 212240404 E-mail: [email protected], Viive VIIRA [email protected] Institute of Geology Tallinn Technical University Jan VANMEIRHAEGHE Estonia ave 7 Krijgslaan 281/S8 10143 Tallinn B-9000 Gent ESTONIA BELGIUM Tel.: 372 6454189 Tel.: 32 (0)9 264.46.12 Fax: 372 6312074 Fax.: 32 (0)9 264.46.08 E-mail: [email protected] E-mail: [email protected] Olev VINN Fons VANDENBERG Geoloogia Instituut Geological Survey of Victoria University of Tartu P.O. Box 500 Vanemuise 46 East Melbourne, Vic 3002 51014 Tartu AUSTRALIA ESTONIA E-mail: [email protected] Tel.: 372 7 375 836 Fax: 372 7 375 836 Thijs VANDENBROUCKE E-mail: [email protected] Research Unit Palaeontology Ghent University Enrique VILLAS Krijgslaan 281 / S 8 Dpto. Ciencias de la Tierra (Paleontología) 9000 Ghent Facultad de Ciencias BELGIUM Universidad de Zaragoza Tel.: 32 9 264 46 07 C/ Pedro Cerbuna s.n. Fax. : 32 9 264 46 08 50009 Zaragoza E-mail: [email protected] SPAIN [email protected] Tel.: 34-976-76-10-78 Fax: 34-976-76-10-88 Jan VANMEIRHAEGHE E-mail: [email protected] Krijgslaan 281/S8 B-9000 Gent Zdeňka VYHLASOVÁ BELGIUM Department of Palaeontology, West Bohemian Tel.: 32 (0)9 264.46.12 Museum in Plzen, Kopeckého sady 2 Fax.: 32 (0)9 264.46.08 301 36 Plzen E-mail: [email protected] Czech Republic Tel.: 420 377 237 604 Marco VECOLI Fax: 420 377 237 604 E-mail: [email protected] Lab. de Paléontologie et Paléogéographie du Paléozoique, UMR 8014 CNRS Beatriz G. WAISFELD Cité Scientifique SN5 Centro de Invesigaciones Paleobiológicas (CIPAL) F-59655 Villeneuve d'Ascq Cedex Fac. Cs. Ex., Fís. y Nat., Univ. Nac. Córdoba FRANCE. Vélez Sársfield 299 Tel.: (33) (0)3 20 43 41 36; 5000 Córdoba Fax: (33) (0)3 20 43 69 00. ARGENTINA E-mail: [email protected] Tel.: 54-(0)351-4332100 E-mail: [email protected]

56 ORDOVICIAN NEWS Nº 22

Xiaofeng WANG The College of Wooster Yichang Institute of Geology and Mineral Resources Wooster, OH 44691 PO Box 502, Yichang, Hubei 443003 USA CHINA Tel.: 330-263-2247 Tel.: 86-717-6331107, 6338286 Fax: 330-263-2249 Fax: 86-717-6346949 E-mail: [email protected] E-mail: 1) [email protected]; 2) URL: http://www.wooster.edu/ [email protected] geology/Mwilson.html

Barry D. WEBBY Brian J. WITZKE Centre for Ecostratigraphy and Paleobiology Research Geologist, Iowa Geological Survey Department of Earth and Planetary Sciences 109 Trowbridge Hall Macquarie University Iowa City, Iowa 52242 North Ryde, N.S.W., 2109 Adjunct Associate Professor AUSTRALIA Dept. Geoscience, University of Iowa Tel.: 02-9816-4020 USA Fax: 02-9850-6904 Tel.: 319-354-7861 E-mail: [email protected] E-mail: [email protected]

Charles WELLMAN Ryszard WRONA Department of Animal and Plant Sciences Instytut Paleobiologii University of Sheffield Polska Akademia Nauk Alfred Denny Building, Western Bank ul.Twarda 51/55 Sheffield S10 2TN PL-00-818 Warszawa UK POLAND Tel.: 0114 222 3689 Tel.: (004822)697 8880 Fax: 0114 222 0002 Fax: (004822)620 6225 E-mail: [email protected] E-mail: [email protected]

James R. WHEELEY Anastasia G. YADRENKINA School of Earth, Ocean and Planetary Sciences Dept. Of Stratigraphy and Paleontology Cardiff University SNIIGGIMS Main Building Krasnyi Prospect, 67, Park Place, Cardiff, CF10 3YE Novosibirsk-91 UK Russia 630091 Tel: 44(0)2920874943 Tel. + 383 (2) 22-44-73 Fax: 44(0)2920874326 Fax: 383 (2) 22-28-65 E-mail: [email protected] E-mail: [email protected]

Reed WICANDER Ellis YOCHELSON Department of Geology 12303 Stafford Lane Central Michigan University Bowie Mt. Pleasant, MI 48859 Maryland 207125 USA USA Tel.: (989) 774-3179 E-mail: [email protected]. Fax: (989) 774-2142 E-mail: [email protected] Evgeny A. YOLKIN Institute of Petroleum Geology Henry WILLIAMS Siberian Branch of RAS West-Central Team, Petro-Canada Oil and Gas 630090, Novosibirsk 150 - 6th Avenue SW Acad. Koptyug pr., 3 Calgary AB, T3A 1Z2 RUSSIA CANADA Tel.: 7-(3832) 33-24-31 Tel.: (403) 296-4168 Fax: 7-3832-33-23-01 Fax: (403) 296-5770 E-mail: [email protected] E-mail: [email protected] Graham YOUNG Mark A. WILSON Manitoba Museum of Man and Nature Department of Geology 190 Rupert Avenue

57 ORDOVICIAN NEWS Nº 22

Winnipeg, Manitoba R3B 0N2 CHINA CANADA Tel.: 0086-25-3282145 (or 3282140) Tel.: (204) 988-0648 Fax: 0086-25-3357026 Fax: (204) 942-3679 E-mail: [email protected] E-mail: [email protected], [email protected] Yongyi ZHEN Division of Earth and Environmental Sciences, Renbin ZHAN The Australian Museum Nanjing Institute of Geology and Palaeontology 6 College St., Sydney 2010 Chinese Academy of Sciences AUSTRALIA 39 East Beijing Road Tel.: 02-9320-6132 Nanjing 210008 Fax: 02-9320-6042 P. R. CHINA E-mail: [email protected] Tel./Fax: 86-25-3282132 E-mail: [email protected] Zhiyi ZHOU Nanjing Institute of Geology and Palaeontology Shunxin ZHANG Academia Sinica, Chi-Ming-Ssu School of Earth and Ocean Sciences Nanjing 210008 University of Victoria CHINA Victoria, BC, V8W 3P6 Tel.: 86-25-3282187 CANADA Fax: 86-(0)25-3357026 Tel.: (250) 472-5378 E-mail: [email protected] Fax: (250) 721-6200 E-mail: [email protected] Michael ZUYKOV St.Petersburg State University Yuandong ZHANG Dept. of Paleontology State Key Laboratory of Palaeobiology and 16 Liniya, 29 Stratigraphy 199178 St. Petersburg Nanjing Institute of Geology and Palaeontology, RUSSIA Academia Sinica Tel./Fax: 7-(812)-346-1129 East Beijing Road 39, Chi-Ming-Ssu E-mail: [email protected] Nanjing 210008