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Siphuncular Structure in the Extant Spirula and in Other Coleoids (Cephalopoda)
GFF ISSN: 1103-5897 (Print) 2000-0863 (Online) Journal homepage: http://www.tandfonline.com/loi/sgff20 Siphuncular Structure in the Extant Spirula and in Other Coleoids (Cephalopoda) Harry Mutvei To cite this article: Harry Mutvei (2016): Siphuncular Structure in the Extant Spirula and in Other Coleoids (Cephalopoda), GFF, DOI: 10.1080/11035897.2016.1227364 To link to this article: http://dx.doi.org/10.1080/11035897.2016.1227364 Published online: 21 Sep 2016. Submit your article to this journal View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=sgff20 Download by: [Dr Harry Mutvei] Date: 21 September 2016, At: 11:07 GFF, 2016 http://dx.doi.org/10.1080/11035897.2016.1227364 Siphuncular Structure in the Extant Spirula and in Other Coleoids (Cephalopoda) Harry Mutvei Department of Palaeobiology, Swedish Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden ABSTRACT ARTICLE HISTORY The shell wall in Spirula is composed of prismatic layers, whereas the septa consist of lamello-fibrillar nacre. Received 13 May 2016 The septal neck is holochoanitic and consists of two calcareous layers: the outer lamello-fibrillar nacreous Accepted 23 June 2016 layer that continues from the septum, and the inner pillar layer that covers the inner surface of the septal KEYWORDS neck. The pillar layer probably is a structurally modified simple prisma layer that covers the inner surface of Siphuncular structures; the septal neck in Nautilus. The pillars have a complicated crystalline structure and contain high amount of connecting rings; Spirula; chitinous substance. -
Phylloceratina (Ammonoidea) Del Pliensbachiano Italiano
00 o Riv. Ital. Paleont. > n . 2 pp. 193-250 tav. 19-20 Milano 1974 PHYLLOCERATINA (AMMONOIDEA) DEL PLIENSBACHIANO ITALIANO N e r in a F a n t i n i S e s t i n i Abstract. This paper concerns thè conclusive researchs on Pliensbachian Phyllo- ceratina from Italy, among which thè genera Geyeroceras Hyatt, 1900 and Partschiceras Fucini, 1923 were already investigated (Fantini Sestini, 1969, 1971). The fossils were collected in stratigraphic sections from Selva di Zandobbio and Alpe Turati in Lombar- dy and from thè M. Nerone area in thè centrai Apennines. They consist of internai moulds and complete shells. The family Juraphyllitidae is present with genera: Jura- phyllites Miiller, Meneghiniceras Hyatt, Harpophylloceras Spath e Galaticeras Spath. Only four genera of Pliensbachian age can be attributed to thè fam. Phylloceratidae; they are as follows: Phylloceras Suess, 1865 with thè two subgenera Phylloceras s.s. e Zetoceras Kovacs, 1939. Test with ornaments visible at low magnification; internai mould smooth, section elliptical, ovai or sublanceolate; E/L and L/U with or without phylloids (minor subdivisions of folioles). Partschiceras Fucini, 1923 ( = Procliviceras Fucini, 1923; Phyllopachyceras Spath, 1925). Test with well distinct riblets, sometimes with ribs and periumbilical ridges; inter nai mould with weak constrictions in thè inner whorls and with very weakly outlined ornaments on thè venter; E/L with phylloids; Hantkeniceras Kovacs, 1939 (= Calaiceras Kovacs, 1939). Test smooth; internai mould smooth with rare weak nearly straight constrictions; L/U with 2/3 folioles jointed at their base. Calliphylloceras Spath, 1927. Test with very well developed riblets along with strong rounded ribs; internai mould smooth with 4 to 8 deep arcuate constrictions; L/U with 2 folioles jointed at their base. -
Contributions in BIOLOGY and GEOLOGY
MILWAUKEE PUBLIC MUSEUM Contributions In BIOLOGY and GEOLOGY Number 51 November 29, 1982 A Compendium of Fossil Marine Families J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions in BIOLOGY and GEOLOGY Number 51 November 29, 1982 A COMPENDIUM OF FOSSIL MARINE FAMILIES J. JOHN SEPKOSKI, JR. Department of the Geophysical Sciences University of Chicago REVIEWERS FOR THIS PUBLICATION: Robert Gernant, University of Wisconsin-Milwaukee David M. Raup, Field Museum of Natural History Frederick R. Schram, San Diego Natural History Museum Peter M. Sheehan, Milwaukee Public Museum ISBN 0-893260-081-9 Milwaukee Public Museum Press Published by the Order of the Board of Trustees CONTENTS Abstract ---- ---------- -- - ----------------------- 2 Introduction -- --- -- ------ - - - ------- - ----------- - - - 2 Compendium ----------------------------- -- ------ 6 Protozoa ----- - ------- - - - -- -- - -------- - ------ - 6 Porifera------------- --- ---------------------- 9 Archaeocyatha -- - ------ - ------ - - -- ---------- - - - - 14 Coelenterata -- - -- --- -- - - -- - - - - -- - -- - -- - - -- -- - -- 17 Platyhelminthes - - -- - - - -- - - -- - -- - -- - -- -- --- - - - - - - 24 Rhynchocoela - ---- - - - - ---- --- ---- - - ----------- - 24 Priapulida ------ ---- - - - - -- - - -- - ------ - -- ------ 24 Nematoda - -- - --- --- -- - -- --- - -- --- ---- -- - - -- -- 24 Mollusca ------------- --- --------------- ------ 24 Sipunculida ---------- --- ------------ ---- -- --- - 46 Echiurida ------ - --- - - - - - --- --- - -- --- - -- - - --- -
An Inventory of Belemnites Documented in Six Us National Parks in Alaska
Lucas, S. G., Hunt, A. P. & Lichtig, A. J., 2021, Fossil Record 7. New Mexico Museum of Natural History and Science Bulletin 82. 357 AN INVENTORY OF BELEMNITES DOCUMENTED IN SIX US NATIONAL PARKS IN ALASKA CYNTHIA D. SCHRAER1, DAVID J. SCHRAER2, JUSTIN S. TWEET3, ROBERT B. BLODGETT4, and VINCENT L. SANTUCCI5 15001 Country Club Lane, Anchorage AK 99516; -email: [email protected]; 25001 Country Club Lane, Anchorage AK 99516; -email: [email protected]; 3National Park Service, Geologic Resources Division, 1201 Eye Street, Washington, D.C. 20005; -email: justin_tweet@ nps.gov; 42821 Kingfisher Drive, Anchorage, AK 99502; -email: [email protected];5 National Park Service, Geologic Resources Division, 1849 “C” Street, Washington, D.C. 20240; -email: [email protected] Abstract—Belemnites (order Belemnitida) are an extinct group of coleoid cephalopods, known from the Jurassic and Cretaceous periods. We compiled detailed information on 252 occurrences of belemnites in six National Park Service (NPS) areas in Alaska. This information was based on published literature and maps, unpublished U.S. Geological Survey internal fossil reports (“Examination and Report on Referred Fossils” or E&Rs), the U.S. Geological Survey Mesozoic locality register, the Alaska Paleontological Database, the NPS Paleontology Archives and our own records of belemnites found in museum collections. Few specimens have been identified and many consist of fragments. However, even these suboptimal specimens provide evidence that belemnites are present in given formations and provide direction for future research. Two especially interesting avenues for research concern the time range of belemnites in Alaska. Belemnites are known to have originated in what is now Europe in the Early Jurassic Hettangian and to have a well-documented world-wide distribution in the Early Jurassic Toarcian. -
Austroalpine Liassic Ammonites from the Adnet Formation (Northern Calcareous Alps) 163-211 ©Geol
ZOBODAT - www.zobodat.at Zoologisch-Botanische Datenbank/Zoological-Botanical Database Digitale Literatur/Digital Literature Zeitschrift/Journal: Jahrbuch der Geologischen Bundesanstalt Jahr/Year: 1993 Band/Volume: 136 Autor(en)/Author(s): Meister Christian, Böhm Florian Artikel/Article: Austroalpine Liassic Ammonites from the Adnet Formation (Northern Calcareous Alps) 163-211 ©Geol. Bundesanstalt, Wien; download unter www.geologie.ac.at Jb. Geol. B.-A. ISSN 0016-7800 Band 136 S.163-211 Wien, Juli 1993 Austroalpine Liassic Ammonites from the Adnet Formation (Northern Calcareous Alps) By CHRISTIAN MEISTER & FLORIAN BÖHM *) With 14 Text-Figures and 9 Plates Oslerreich Salzburg Oberöslerreich Nördliche Kalkalpen Lias Ammoniten Oslerreichische Karle 1. 50.000 Biostratigraphie BI/1l1er94, 95, 96,126 Palaeogeographie Contents Zusammenfassung 163 Abstract. .. 164 Resume 164 1. Introduction 164 2. Geographical and Geological Framework 164 3. Lithological Description and Qualitative/Quantitative Ammonite Distributions 165 3.1. Schmiedwirt Quarry 165 3.2. Breitenberg Quarry 166 3.3. Rotkogel Outcrop 166 3.4. Rötelstein Outcrop 168 4. Systematic Palaeontology 169 PhylioceratinaARKELL 1950 171 LytoceratinaHYATT1889 174 Ammonitina HYATT 1889 175 5. Biostratigraphical Framework 184 5.1. Sinemurian 184 5.1.1. Early Sinemurian 184 5.1.2. Late Sinemurian 184 5.2. Pliensbachian 184 5.2.1. Early Pliensbachian (Carixian) 184 5.2.2. Late Pliensbachian (Domerian) 186 5.3. Toarcian 186 6. Faunal Composition and Palaeogeographical Remarks 189 7. Conclusion 190 Acknowledgements 190 References 208 Oberostalpine Liasammoniten aus der Adnetformation (Nördlichen Kalkalpen) Zusammenfassung Das Oberostalpin spielt eine Schlüsselrolle für das Verständnis der Verteilungsmuster der jurassischen Ammonitenfaunen und für die Fixierung genauer biostratigraphischer Korrelationen zwischen Tethyaler und Euroborealer Faunenprovinz. -
Geological Survey Canada
GEOLOGICAL BULLETIN 74 SURVEY 1 p OF CANADA DEPARTMENT OF MINES AND TECHNICAL SURVEYS THE JURASSIC FAUNAS OF THE CANADIAN ARCTIC MIDDLE AND UPPER JURASSIC AMMONITES Hans Frebold 5" Price, $2.00 1961 THE JURASSIC FAUNAS OF THE CANADIAN ARCTIC Middle and Upper Jurassic Ammonites 3,000—1960—1789 89772-8—li GEOLOGICAL SURVEY OF CANADA BULLETIN 74 THE JURASSIC FAUNAS OF THE CANADIAN ARCTIC MIDDLE AND UPPER JURASSIC AMMONITES By Hans Frebold DEPARTMENT OF MINES AND TECHNICAL SURVEYS CANADA ROGER DUHAMEL, F.R.S.C. QUEEN'S PRINTER AND CONTROLLER OF STATIONERY OTTAWA, 1961 Price $2.00 Cat. No. M42-74 PREFACE This report is based on fossil collections made over a vast area of the Canadian Arctic extending from Ellesmere Island in the north to the Aklavik region of the mainland. Detailed study of these ammonite faunas permits correla tion of the associated Jurassic rocks and shows their faunal and stratigraphic relationships with East Greenland and Siberia. J. M. HARRISON, Director, Geological Survey of Canada OTTAWA, June 22, 1960 CONTENTS PAGE Introduction 1 Fossil localities 2 Richardson and British Mountains region 2 Canadian Arctic islands 3 Description of ammonites 5 Age and correlation 25 The zoogeographical position of the Middle and Upper Jurassic ammonite faunas of the Canadian Arctic 32 The time of the manifestation of the Jurassic boreal realm 35 The Arctic seas in Middle and Late Jurassic times 37 References 41 Table I. Correlation chart of the Middle and Upper Jurassic of the Canadian Arctic with other Arctic regions Facing p. 26 Illustrations Plates I—XXI. -
Cephalopod Reproductive Strategies Derived from Embryonic Shell Size
Biol. Rev. (2017), pp. 000–000. 1 doi: 10.1111/brv.12341 Cephalopod embryonic shells as a tool to reconstruct reproductive strategies in extinct taxa Vladimir Laptikhovsky1,∗, Svetlana Nikolaeva2,3,4 and Mikhail Rogov5 1Fisheries Division, Cefas, Lowestoft, NR33 0HT, U.K. 2Department of Earth Sciences Natural History Museum, London, SW7 5BD, U.K. 3Laboratory of Molluscs Borissiak Paleontological Institute, Russian Academy of Sciences, Moscow, 117997, Russia 4Laboratory of Stratigraphy of Oil and Gas Bearing Reservoirs Kazan Federal University, Kazan, 420000, Russia 5Department of Stratigraphy Geological Institute, Russian Academy of Sciences, Moscow, 119017, Russia ABSTRACT An exhaustive study of existing data on the relationship between egg size and maximum size of embryonic shells in 42 species of extant cephalopods demonstrated that these values are approximately equal regardless of taxonomy and shell morphology. Egg size is also approximately equal to mantle length of hatchlings in 45 cephalopod species with rudimentary shells. Paired data on the size of the initial chamber versus embryonic shell in 235 species of Ammonoidea, 46 Bactritida, 13 Nautilida, 22 Orthocerida, 8 Tarphycerida, 4 Oncocerida, 1 Belemnoidea, 4 Sepiida and 1 Spirulida demonstrated that, although there is a positive relationship between these parameters in some taxa, initial chamber size cannot be used to predict egg size in extinct cephalopods; the size of the embryonic shell may be more appropriate for this task. The evolution of reproductive strategies in cephalopods in the geological past was marked by an increasing significance of small-egged taxa, as is also seen in simultaneously evolving fish taxa. Key words: embryonic shell, initial chamber, hatchling, egg size, Cephalopoda, Ammonoidea, reproductive strategy, Nautilida, Coleoidea. -
Doguzhaeva Etal 2014 Embryo
Embryonic shell structure of Early–Middle Jurassic belemnites, and its significance for belemnite expansion and diversification in the Jurassic LARISA A. DOGUZHAEVA, ROBERT WEIS, DOMINIQUE DELSATE AND NINO MARIOTTI Doguzhaeva, L.A., Weis, R., Delsate, D. & Mariotti N. 2014: Embryonic shell structure of Early–Middle Jurassic belemnites, and its significance for belemnite expansion and diversification in the Jurassic. Lethaia, Vol. 47, pp. 49–65. Early Jurassic belemnites are of particular interest to the study of the evolution of skel- etal morphology in Lower Carboniferous to the uppermost Cretaceous belemnoids, because they signal the beginning of a global Jurassic–Cretaceous expansion and diver- sification of belemnitids. We investigated potentially relevant, to this evolutionary pat- tern, shell features of Sinemurian–Bajocian Nannobelus, Parapassaloteuthis, Holcobelus and Pachybelemnopsis from the Paris Basin. Our analysis of morphological, ultrastruc- tural and chemical traits of the earliest ontogenetic stages of the shell suggests that modified embryonic shell structure of Early–Middle Jurassic belemnites was a factor in their expansion and colonization of the pelagic zone and resulted in remarkable diversification of belemnites. Innovative traits of the embryonic shell of Sinemurian– Bajocian belemnites include: (1) an inorganic–organic primordial rostrum encapsulating the protoconch and the phragmocone, its non-biomineralized compo- nent, possibly chitin, is herein detected for the first time; (2) an organic rich closing membrane which was under formation. It was yet perforated and possessed a foramen; and (3) an organic rich pro-ostracum earlier documented in an embryonic shell of Pliensbachian Passaloteuthis. The inorganic–organic primordial rostrum tightly coat- ing the protoconch and phragmocone supposedly enhanced protection, without increase in shell weight, of the Early Jurassic belemnites against explosion in deep- water environment. -
Sepkoski, J.J. 1992. Compendium of Fossil Marine Animal Families
MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. MILWAUKEE PUBLIC MUSEUM Contributions . In BIOLOGY and GEOLOGY Number 83 March 1,1992 A Compendium of Fossil Marine Animal Families 2nd edition J. John Sepkoski, Jr. Department of the Geophysical Sciences University of Chicago Chicago, Illinois 60637 Milwaukee Public Museum Contributions in Biology and Geology Rodney Watkins, Editor (Reviewer for this paper was P.M. Sheehan) This publication is priced at $25.00 and may be obtained by writing to the Museum Gift Shop, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Orders must also include $3.00 for shipping and handling ($4.00 for foreign destinations) and must be accompanied by money order or check drawn on U.S. bank. Money orders or checks should be made payable to the Milwaukee Public Museum. Wisconsin residents please add 5% sales tax. In addition, a diskette in ASCII format (DOS) containing the data in this publication is priced at $25.00. Diskettes should be ordered from the Geology Section, Milwaukee Public Museum, 800 West Wells Street, Milwaukee, WI 53233. Specify 3Y. inch or 5Y. inch diskette size when ordering. Checks or money orders for diskettes should be made payable to "GeologySection, Milwaukee Public Museum," and fees for shipping and handling included as stated above. Profits support the research effort of the GeologySection. ISBN 0-89326-168-8 ©1992Milwaukee Public Museum Sponsored by Milwaukee County Contents Abstract ....... 1 Introduction.. ... 2 Stratigraphic codes. 8 The Compendium 14 Actinopoda. -
Abstracts and Program. – 9Th International Symposium Cephalopods ‒ Present and Past in Combination with the 5Th
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/265856753 Abstracts and program. – 9th International Symposium Cephalopods ‒ Present and Past in combination with the 5th... Conference Paper · September 2014 CITATIONS READS 0 319 2 authors: Christian Klug Dirk Fuchs University of Zurich 79 PUBLICATIONS 833 CITATIONS 186 PUBLICATIONS 2,148 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Exceptionally preserved fossil coleoids View project Paleontological and Ecological Changes during the Devonian and Carboniferous in the Anti-Atlas of Morocco View project All content following this page was uploaded by Christian Klug on 22 September 2014. The user has requested enhancement of the downloaded file. in combination with the 5th International Symposium Coleoid Cephalopods through Time Abstracts and program Edited by Christian Klug (Zürich) & Dirk Fuchs (Sapporo) Paläontologisches Institut und Museum, Universität Zürich Cephalopods ‒ Present and Past 9 & Coleoids through Time 5 Zürich 2014 ____________________________________________________________________________ 2 Cephalopods ‒ Present and Past 9 & Coleoids through Time 5 Zürich 2014 ____________________________________________________________________________ 9th International Symposium Cephalopods ‒ Present and Past in combination with the 5th International Symposium Coleoid Cephalopods through Time Edited by Christian Klug (Zürich) & Dirk Fuchs (Sapporo) Paläontologisches Institut und Museum Universität Zürich, September 2014 3 Cephalopods ‒ Present and Past 9 & Coleoids through Time 5 Zürich 2014 ____________________________________________________________________________ Scientific Committee Prof. Dr. Hugo Bucher (Zürich, Switzerland) Dr. Larisa Doguzhaeva (Moscow, Russia) Dr. Dirk Fuchs (Hokkaido University, Japan) Dr. Christian Klug (Zürich, Switzerland) Dr. Dieter Korn (Berlin, Germany) Dr. Neil Landman (New York, USA) Prof. Pascal Neige (Dijon, France) Dr. -
The Marine Jurassic of Argentina: a Biostratigraphic Framework
326 by Alberto C. Riccardi The marine Jurassic of Argentina: a biostratigraphic framework Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina. Email: [email protected] In Argentina the best and most complete marine Juras- sic succession is exposed between 32° and 39° S, along a N-S belt roughly coincident with the border with Chile. Here all stages, except the Kimmeridgian, are represented by marine facies. Ammonites have provided a biostratigraphic framework to date and correlate lithostratigraphic units and sequences, to reconstruct the history of the marine fill, and allow the development of other palaeontological and geological studies. Recent studies on the systematics and/or biostratigra- phy of Andean ammonites have provided the basis for the presentation of a summary of the 45 ammonite zones of the Jurassic of west-central Argentina and to stress its significance in reconstructing the palaeogeographic evolution of that region. Introduction Jurassic rocks in Argentina are present over extensive areas (see Fig- ure 1) and include a large variety of marine and continental facies (see Riccardi et al., 1992). South of 39°S marine Jurassic consists of Pliensbachian-Lower Toarcian and uppermost Jurassic strata, repre- sented respectively in central and southern Patagonia. North of 39°S marine Jurassic is exposed along a N-S belt roughly coincident with the boundary between Argentina and Chile, up to 31°S where it becomes restricted to Chile. The marine Jurassic generally rests unconformably on Upper Triassic (west-central Argentina) and Upper Jurassic vulcanites (southern Patagonia) or on Upper Paleozoic (west-central Patago- nia). -
G Abhandlungen Der Geologischen Bundesanstalt
ABHANDLUNGEN DER GEOLOGISCHEN BUNDESANSTALT ,G Abh. Geol. B.-A. I ISSISSN 0378-08640378-086411 ISBN 3-85316-007-7 Band 56/2 I S. 343-377 Wien, Dezember 1999 Geologie ohne Grenzen Redaktion: Festschrift 150 Jahre Geologische Bundesanstalt Harald Lobitzer & Pavol Grecula Liassic ammonites from Hierlatz, Austria MILOS RAKÜS 43 Text-Figures, 5 Plates Northern Calcareous Alps Hierlatz ammonites systematic Österreichische Karte 1:50.000 revision Blatt 96 new species Contents Abstract 343 Zusammenfassung 343 1. Introduction 343 2. Systematic part 344 3. Age of ammonite fauna 3^5 Acknowledgements 3^5 References 365 Abstract In the article the author presents a revision of ammonites from the locality Hierlatz. The revised material mostly comes from the preserved collections of HAUER (1853, 1854 and partly 1856) and GEYER (1886) at the GBA. Besides that we also studied own material. The assembla ge of ammonites is relatively rich in species as testified by arround 40 described species, from which there is one new species. With regard to the fact that at locality Hierlatz the fauna occurs in neptunic dykes, horizoned collections cannot be gathered out here. On the bases of as semblages of ammonites presented here we distinguished five ammonite horizons, which represent the Sinemurian , Lotharingian and Lower Carixian too. Die Lias-Ammonitenfauna des Hierlatz, Dachsteingebiet, Oberösterreich Zusammenfassung Die Ammonitenfauna der klassischen Lokalität Hierlatz wurde revidiert. Die Revision bezog sich vor allem auf das in den Sammlungen der Geologischen Bundesanstalt in Wien noch vorhandene Originalematerial zu den Arbeiten von HAUER (1853, 1854 und 1856 z.T.) und GEYER (1886) sowie auch auf eigene Aufsammlungen.