DOCSLIB.ORG

Radiolarian Correlation of Jurassic Siliceous Successions of the Rosso Ammonitico Formation in the Southern Alps and Western Sicily (Italy)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Radiolarian Correlation of Jurassic Siliceous Successions of the Rosso Ammonitico Formation in the Southern Alps and Western Sicily (Italy) 0012-9402/06/01S021-13 Eclogae geol. Helv. 99 (2006) Supplement 1, S21–S33 DOI 10.1007/s00015-006-0607-0 Birkhäuser Verlag, Basel, 2007 Radiolarian correlation of Jurassic siliceous successions of the Rosso Ammonitico Formation in the Southern Alps and Western Sicily (Italy) PAOLA BECCARO Key words: Radiolarians, Ammonites, Biostratigraphy, Unitary Associations Zones, Rosso Ammonitico Medio, Middle-Late Jurassic, Italy Parole chiave: Radiolari, Ammoniti, Biostratigrafia, Zone ad Associazioni Unitarie, Rosso Ammonitico Medio, Giurassico medio-superiore, Italia ABSTRACT RIASSUNTO This paper deals with the radiolarian biostratigraphy of Middle-Upper Jurassic La ricerca riguarda la biostratigrafia a radiolari di successioni pelagiche silicee pelagic siliceous successions of the Southern Alps and Western Sicily (Italy). riferibili al Giurassico Medio-Superiore delle Alpi Meridionali e della Sicilia The crucial complement to this research is the occurrence of ammonites in the occidentale (Italia). L’aspetto più importante è la presenza di ammoniti sia studied successions (Rosso Ammonitico Medio: the intermediate siliceous nelle successioni studiate (Rosso Ammonitico Medio: porzione intermedia si- member of the Rosso Ammonitico Formation), as well as in the under- and licea della Formazione del Rosso Ammonitico) sia in quelle sotto- e sovra- overlying sediments (Rosso Ammonitico Inferiore and Rosso Ammonitico Su- stanti (rispettivamente Rosso Ammonitico Inferiore e Rosso Ammonitico Su- periore, respectively). The abundance of radiolarians in all successions allow periore). L’abbondanza di radiolari in tutte le sezioni studiate ha permesso di to analyse them for a twofold purpose: to date directly most of the successions, analizzarli sia per datare direttamente la maggior parte delle successioni sia and to improve the calibration of radiolarian biozones thanks to the occur- per migliorare la calibrazione delle biozone a radiolari grazie alla presenza rence of ammonites. The biostratigraphic analysis has been carried out using delle ammoniti. L’analisi biostratigrafica è stata effettuata con il metodo delle the Unitary Associations method, and six new radiolarian biozones have been Associazioni Unitarie e sono state definite sei nuove biozone a radiolari: la co- defined: the combined occurrence of radiolarians and ammonites provided a presenza di radiolari ed ammoniti ha così fornito una nuova zonazione a ra- new Bathonian to late Kimmeridgian radiolarian zonation for the Southern diolari per l’intervallo di tempo Batoniano-Kimmeridgiano delle Alpi Meri- Alps and Western Sicily (Italy). The new Unitary Association Zones show a dionali e della Sicilia occidentale (Italia). Le Zone ad Associazioni Unitarie good reproducibility throughout the investigated successions, and make possi- identificate mostrano una buona riproducibilità tra le sezioni stratigrafiche ble a first direct dating and correlation by radiolarians of the Rosso Am- analizzate ed hanno permesso una prima datazione e correlazione diretta a ra- monitico Medio. Furthermore, the radiolarian biozones reveal a significant di- diolari del Rosso Ammonitico Medio. Le biozone a radiolari hanno inoltre ri- achronism for both the lower and the upper limit of the Jurassic pelagic velato un significativo diacronismo sia per il limite inferiore sia per il limite su- siliceous facies in the Alpine and Sicilian sections. In the light of new radiolar- periore delle facies pelagiche silicee nelle sezioni alpine e siciliane. Alla luce ian biozones, the age assignments of the Ceniga (Southern Alps) and the San- dei nuovi dati biostratigrafici forniti dai radiolari sono infine discusse le età t’Anna (Sicily) sections, and the ranges of some taxa are discussed. della facies silicea nelle sezioni di Ceniga (Alpi Meridionali) e di Sant’Anna (Sicilia) e la distribuzione stratigrafica di alcuni taxa. Introduction The Sicilian chain and the Southern Alps represent seg- The study of siliceous successions in the Southern Alps and in ments of the Alpine collisional belt formed during the “Ter- Western Sicily (Italy) benefits from the fact that such successi- tiary” time along the boundary between the European and ons are approximately coeval and may be referred to analo- African plates. The Jurassic paleogeographic settings of Sicily gous paleogeographic settings. These similarities enable to and the Alps result from the breakup of the Triassic carbonate compare radiolarian assemblages of different geographic areas platform and the subsequent extensional movements. The and to correlate different Tethyan paleogeographic regions. platform was divided in several areas with different subsidence The paleogeographic domains are two pelagic plateaux (Tra- rates, and different paleogeographic domains were formed panese Domain in Western Sicily and Trento Plateau in the (pelagic plateaux, basins and limited areas of platforms) (Figs. Southern Alps) and one basin (Sicanian Domain in Western 1 and 2). During the Middle Jurassic a general deepening took Sicily) (Figs. 1 and 2). The age of the studied successions ran- place and the deposition of sediments in the Rosso Ammoniti- ges from the Bathonian to the Kimmeridgian. co facies occurred on the pelagic plateaux up to Late Jurassic 1 Dipartimento di Scienze della Terra, Via Valperga Caluso 35, 10125 Torino, Italy. Email: [email protected] Jurassic radiolarians, Southern Alps, Sicily S21 Fig. 1. An attempt of paleogeographic recon- struction of the Sicilian area at the Late Triassic time (Catalano et al. 1996). Favignana, Balata di Baida and Inici Mt. sections belong to the pelagic plateau of the Trapanese Domain; Sant’Anna sec- tion belongs to the Sicanian Basin. The paleogeo- graphic location of the stratigraphic sections is only indicative. (Winterer & Bosellini 1981; Catalano et al. 1996). The Rosso under- and overlying sediments and, in some instances, also Ammonitico sediments consist of condensed red nodular lime- within the siliceous successions: This fact motivates the analy- stone rich in ammonites, and are subdivided in three members sis of radiolarian assemblages in the selected sections. The whose ages differ between the Southern Alps and Sicily. The abundance of radiolarians enables to study them for a twofold lower part (RAI: Rosso Ammonitico Inferiore) spans the late purpose: to date directly most of the siliceous facies (whose Bajocian-early Callovian in the Alps and the Bathonian-mid age was generally based on the ages of the bracketing forma- Oxfordian in Sicily. The upper part (RAS: Rosso Ammonitico tions) and to improve the calibration of radiolarian zones by Superiore) starts in the mid Oxfordian in the Alps and in the ammonite zones. early Kimmeridgian in Sicily. RAI and RAS are separated by This paper deals with the main results of the author’s PhD the intermediate siliceous member (RAM: Rosso Ammonitico research (Beccaro 2002) where radiolarian assemblages were Medio), assigned to upper Callovian-mid Oxfordian in the studied for the first time in the following sections: Fornazzo Alps and mid Oxfordian-Kimmeridgian in Sicily. The interme- Strada, Fornazzo Cava, Castello Inici, Balata di Baida, Favig- diate siliceous member represents the studied sediments in all nana (North-western Sicily) (Beccaro 2002, 2004a) and Cava the stratigraphic sections except for Sant’Anna (Sicily). Vianini (Southern Alps) (Beccaro 2002). Concerning the San- Very few authors have studied the Jurassic radiolarian as- t’Anna (South-western Sicily) and the Ceniga (Southern Alps) semblages of the Southern Alps and Western Sicily. Kocher sections, new radiolarian data improved the former biochrono- (1981) was the first author who studied radiolarians from the logic assignments. New species of Nassellaria (Fultacapsa Southern Alps but mainly in the Lombardian basin. The Ceni- ozvoldovae, Podobursa andreai, Podobursa vannae, Loopus ga section was first described by Fogelgesang (1975), and then doliolum martae) and Spumellaria (Emiluvia peteri, Triactoma studied for radiolarians by Baumgartner (1984) and Baumgart- enzoi) from the cited sections have been described in Beccaro ner et al. (1995b). The Coston delle Vette section was first de- 2004b. scribed by Dal Piaz (1907), then analysed by Bosellini & Dal Cin (1968) and Della Bruna & Martire (1985), and finally stud- Lithologic description of the stratigraphic sections ied for radiolarians by Beccaro (1998) and Beccaro et al. (2002). The Cava Vianini was only described by Papa (1994) In Western Sicily five stratigraphic sections of the Rosso Am- for sedimentologic purposes. Concerning Western Sicily, sev- monitico Medio (RAM) have been studied in the Trapanese eral authors studied the geology for different aims (Giunta & Domain (pelagic plateau) and one section in the Sicanian Liguori 1972, 1973; Wendt 1964, 1971; Catalano et al. 1989; Basin (Fig. 1). The geographic location of these sections is Cecca et al. 2001; Catalano et al. 2002 among others). Never- shown in Figure 3. theless, the radiolarian papers regarding the Sicanian Basin TRAPANESE DOMAIN (North-western Sicily) – Fornazzo have been mainly focused on the Sant’Anna section (Riedel & sections are located at the Inici Mt. near Castellammare del Sanfilippo 1974; Mascle 1973, 1979; Baumgartner et al. 1980; Golfo. The Fornazzo Strada section crops out along the road Origlia-Devos 1983; Baumgartner 1984; De Wever et al. 1986; to Fornazzo quarry. The RAM is 26 m thick and consists of Aita 1987; De Wever 1995) because of its rich fossil content well-stratified
Load more

Recommended publications
  • A Mysterious Giant Ichthyosaur from the Lowermost Jurassic of Wales
    A mysterious giant ichthyosaur from the lowermost Jurassic of Wales JEREMY E. MARTIN, PEGGY VINCENT, GUILLAUME SUAN, TOM SHARPE, PETER HODGES, MATT WILLIAMS, CINDY HOWELLS, and VALENTIN FISCHER Ichthyosaurs rapidly diversified and colonised a wide range vians may challenge our understanding of their evolutionary of ecological niches during the Early and Middle Triassic history. period, but experienced a major decline in diversity near the Here we describe a radius of exceptional size, collected at end of the Triassic. Timing and causes of this demise and the Penarth on the coast of south Wales near Cardiff, UK. This subsequent rapid radiation of the diverse, but less disparate, specimen is comparable in morphology and size to the radius parvipelvian ichthyosaurs are still unknown, notably be- of shastasaurids, and it is likely that it comes from a strati- cause of inadequate sampling in strata of latest Triassic age. graphic horizon considerably younger than the last definite Here, we describe an exceptionally large radius from Lower occurrence of this family, the middle Norian (Motani 2005), Jurassic deposits at Penarth near Cardiff, south Wales (UK) although remains attributable to shastasaurid-like forms from the morphology of which places it within the giant Triassic the Rhaetian of France were mentioned by Bardet et al. (1999) shastasaurids. A tentative total body size estimate, based on and very recently by Fischer et al. (2014). a regression analysis of various complete ichthyosaur skele- Institutional abbreviations.—BRLSI, Bath Royal Literary tons, yields a value of 12–15 m. The specimen is substantially and Scientific Institution, Bath, UK; NHM, Natural History younger than any previously reported last known occur- Museum, London, UK; NMW, National Museum of Wales, rences of shastasaurids and implies a Lazarus range in the Cardiff, UK; SMNS, Staatliches Museum für Naturkunde, lowermost Jurassic for this ichthyosaur morphotype.
    [Show full text]
  • Ocean Drilling Program Scientific Results Volume
    von Rad, U., Haq, B. U., et al., 1992 Proceedings of the Ocean Drilling Program, Scientific Results, Vol. 122 24. TRIASSIC FORAMINIFERS FROM SITES 761 AND 764, WOMBAT PLATEAU, NORTHWEST AUSTRALIA1 Louisette Zaninetti,2 Rossana Martini,2 and Thierry Dumont3 ABSTRACT The Late Triassic foraminifers encountered in the cores from ODP Leg 122 Sites 761 and 764 are, on the basis of Triasina oberhauseri and Triasina hantkeni, late Norian and Rhaetian (Jriasina hantkeni Biozone) in age. The reefal carbonate platform penetrated at both sites is characterized by inner shelf (intertidal to lagoon), patch reef, and outer shelf facies. INTRODUCTION major break between the two. This is in turn overlain at Site 761 by a sharp sedimentary break followed by a new shallow- Upper Triassic sediments were drilled offshore northwest ing-upward sedimentary sequence of Rhaetian age, which is Australia in 1988 during Ocean Drilling Program (ODP) Leg capped by the postrift unconformity and comprises schemat- 122 (Haq, von Rad, et al., 1990). Four sites (759, 760, 761, and ically two units: (1) a lower, terrigenous-rich, transgressive 764) were drilled on the Wombat Plateau, the northern prom- unit showing both shallow open-marine and external platform ontory of the Exmouth Plateau (von Rad et al., 1989a; Fig. environments and (2) an upper regressive carbonate unit with 1 A). These sites provided the opportunity for reconstructing a lagoonal to intertidal deposits. A third overlying unit recov- composite section of Upper Triassic cores from the Carnian to ered at Site 764 does not exist at Site 761 because of Jurassic the Rhaetian, because the Wombat Plateau experienced non- erosion.
    [Show full text]
  • Misikella Ultima Kozur & Mock, 1991: First Evidence of Late Rhaetian
    Bollettino della Società Paleontologica Italiana Modena, Novembre 1999 Misikella ultima Kozur & Mock, 1991: first evidence of Late Rhaetian conodonts in Calabria (Southern Italy) Adelaide MASTANDREA Claudio NERI Fabio lETTO Franco Russo Di p. di Scienze della Terra Di p. di Se. Geo!. e Paleomol. Dip. di Scienze della Terra Dip. di Scienze della Terra Univ. di Modena e Reggio Emilia Università di Ferrara Università di Napoli Federico II Università della Calabria KEY- WORDS- Conodonts, Clusters, Biostratigraphy, Basin deposits, Catena Costiera, Calabria, Rhaetian. ABSTRACT- The succession cropping out in the Fosso Pantanelle area (Mt. S. Giovanni, Calabrian "Catena Costiera'; Upper Trias) provided a rich and well preserved conodont fauna. The basin stratigraphic succession is characterized by cherty lime mudstone with minor fine- grained calciturbidites and suspected tujìtes. Conodont founa is dominated by M. hernsteini and M. posthernsteini in the lower and middle part of the section, and by M. uftima in the uppermost part. Every species is represented by a great number of specimens. On the basis of the chronostratigraphic classification ofKozur & Mock (1991), the whole section may be referred to Rhaetian. Due to the good preservation and the great abundance of conodonts (some occurring in clusters), the calabrian Catena Costiera succession may represent a reference succession for the study ofthe latest Triassic conodont founas and chronostratigraphy. RIASSUNTO- [Misikella ultima Kozur & Mock, 1991: primo ritrovamento di conodonti del Reti co su p. in Calabria (Italia meridionale)] -Recenti ricerche sulla stratigrafia dei terreni triassici affìoranti nella "Catena costiera" calabrese hanno messo in evidenza la presenza di foune a conodonti ricche e ben conservate (talvolta in clusters) che consentono di datare tali terreni all'intervallo Norico - Retico.
    [Show full text]
  • 1 Supplementary Materials and Methods 1 S1 Expanded
    1 Supplementary Materials and Methods 2 S1 Expanded Geologic and Paleogeographic Information 3 The carbonate nodules from Montañez et al., (2007) utilized in this study were collected from well-developed and 4 drained paleosols from: 1) the Eastern Shelf of the Midland Basin (N.C. Texas), 2) Paradox Basin (S.E. Utah), 3) Pedregosa 5 Basin (S.C. New Mexico), 4) Anadarko Basin (S.C. Oklahoma), and 5) the Grand Canyon Embayment (N.C. Arizona) (Fig. 6 1a; Richey et al., (2020)). The plant cuticle fossils come from localities in: 1) N.C. Texas (Lower Pease River [LPR], Lake 7 Kemp Dam [LKD], Parkey’s Oil Patch [POP], and Mitchell Creek [MC]; all representing localities that also provided 8 carbonate nodules or plant organic matter [POM] for Montañez et al., (2007), 2) N.C. New Mexico (Kinney Brick Quarry 9 [KB]), 3) S.E. Kansas (Hamilton Quarry [HQ]), 4) S.E. Illinois (Lake Sara Limestone [LSL]), and 5) S.W. Indiana (sub- 10 Minshall [SM]) (Fig. 1a, S2–4; Richey et al., (2020)). These localities span a wide portion of the western equatorial portion 11 of Euramerica during the latest Pennsylvanian through middle Permian (Fig. 1b). 12 13 S2 Biostratigraphic Correlations and Age Model 14 N.C. Texas stratigraphy and the position of pedogenic carbonate samples from Montañez et al., (2007) and cuticle were 15 inferred from N.C. Texas conodont biostratigraphy and its relation to Permian global conodont biostratigraphy (Tabor and 16 Montañez, 2004; Wardlaw, 2005; Henderson, 2018). The specific correlations used are (C. Henderson, personal 17 communication, August 2019): (1) The Stockwether Limestone Member of the Pueblo Formation contains Idiognathodus 18 isolatus, indicating that the Carboniferous-Permian boundary (298.9 Ma) and base of the Asselian resides in the Stockwether 19 Limestone (Wardlaw, 2005).
    [Show full text]
  • An Inventory of Trilobites from National Park Service Areas
    Sullivan, R.M. and Lucas, S.G., eds., 2016, Fossil Record 5. New Mexico Museum of Natural History and Science Bulletin 74. 179 AN INVENTORY OF TRILOBITES FROM NATIONAL PARK SERVICE AREAS MEGAN R. NORR¹, VINCENT L. SANTUCCI1 and JUSTIN S. TWEET2 1National Park Service. 1201 Eye Street NW, Washington, D.C. 20005; -email: [email protected]; 2Tweet Paleo-Consulting. 9149 79th St. S. Cottage Grove. MN 55016; Abstract—Trilobites represent an extinct group of Paleozoic marine invertebrate fossils that have great scientific interest and public appeal. Trilobites exhibit wide taxonomic diversity and are contained within nine orders of the Class Trilobita. A wealth of scientific literature exists regarding trilobites, their morphology, biostratigraphy, indicators of paleoenvironments, behavior, and other research themes. An inventory of National Park Service areas reveals that fossilized remains of trilobites are documented from within at least 33 NPS units, including Death Valley National Park, Grand Canyon National Park, Yellowstone National Park, and Yukon-Charley Rivers National Preserve. More than 120 trilobite hototype specimens are known from National Park Service areas. INTRODUCTION Of the 262 National Park Service areas identified with paleontological resources, 33 of those units have documented trilobite fossils (Fig. 1). More than 120 holotype specimens of trilobites have been found within National Park Service (NPS) units. Once thriving during the Paleozoic Era (between ~520 and 250 million years ago) and becoming extinct at the end of the Permian Period, trilobites were prone to fossilization due to their hard exoskeletons and the sedimentary marine environments they inhabited. While parks such as Death Valley National Park and Yukon-Charley Rivers National Preserve have reported a great abundance of fossilized trilobites, many other national parks also contain a diverse trilobite fauna.
    [Show full text]
  • North American Stratigraphic Code1
    NORTH AMERICAN STRATIGRAPHIC CODE1 North American Commission on Stratigraphic Nomenclature FOREWORD TO THE REVISED EDITION FOREWORD TO THE 1983 CODE By design, the North American Stratigraphic Code is The 1983 Code of recommended procedures for clas- meant to be an evolving document, one that requires change sifying and naming stratigraphic and related units was pre- as the field of earth science evolves. The revisions to the pared during a four-year period, by and for North American Code that are included in this 2005 edition encompass a earth scientists, under the auspices of the North American broad spectrum of changes, ranging from a complete revision Commission on Stratigraphic Nomenclature. It represents of the section on Biostratigraphic Units (Articles 48 to 54), the thought and work of scores of persons, and thousands of several wording changes to Article 58 and its remarks con- hours of writing and editing. Opportunities to participate in cerning Allostratigraphic Units, updating of Article 4 to in- and review the work have been provided throughout its corporate changes in publishing methods over the last two development, as cited in the Preamble, to a degree unprece- decades, and a variety of minor wording changes to improve dented during preparation of earlier codes. clarity and self-consistency between different sections of the Publication of the International Stratigraphic Guide in Code. In addition, Figures 1, 4, 5, and 6, as well as Tables 1 1976 made evident some insufficiencies of the American and Tables 2 have been modified. Most of the changes Stratigraphic Codes of 1961 and 1970. The Commission adopted in this revision arose from Notes 60, 63, and 64 of considered whether to discard our codes, patch them over, the Commission, all of which were published in the AAPG or rewrite them fully, and chose the last.
    [Show full text]
  • The Upper Jurassic of Europe: Its Subdivision and Correlation
    The Upper Jurassic of Europe: its subdivision and correlation Arnold Zeiss In the last 40 years, the stratigraphy of the Upper Jurassic of Europe has received much atten- tion and considerable revision; much of the impetus behind this endeavour has stemmed from the work of the International Subcommission on Jurassic Stratigraphy. The Upper Jurassic Series consists of three stages, the Oxfordian, Kimmeridgian and Tithonian which are further subdivided into substages, zones and subzones, primarily on the basis of ammonites. Regional variations between the Mediterranean, Submediterranean and Subboreal provinces are discussed and correlation possibilities indicated. The durations of the Oxfordian, Kimmeridgian and Tithonian Stages are reported to have been 5.3, 3.4 and 6.5 Ma, respectively. This review of the present status of Upper Jurassic stratigraphy aids identification of a num- ber of problems of subdivision and definition of Upper Jurassic stages; in particular these include correlation of the base of the Kimmeridgian and the top of the Tithonian between Submediterranean and Subboreal Europe. Although still primarily based on ammonite stratigraphy, subdivision of the Upper Jurassic is increasingly being refined by the incorporation of other fossil groups; these include both megafossils, such as aptychi, belemnites, bivalves, gastropods, brachiopods, echino- derms, corals, sponges and vertebrates, and microfossils such as foraminifera, radiolaria, ciliata, ostracodes, dinoflagellates, calcareous nannofossils, charophyaceae, dasycladaceae, spores and pollen. Important future developments will depend on the detailed integration of these disparate biostratigraphic data and their precise combination with the abundant new data from sequence stratigraphy, utilising the high degree of stratigraphic resolution offered by certain groups of fos- sils.
    [Show full text]
  • Biozonation and Paleobathymetry on Foraminifera Upper Cretaceous Deposites of Central Iran Basins (Isfahan, Baharestan Section)
    Open Journal of Geology, 2014, 4, 343-353 Published Online August 2014 in SciRes. http://www.scirp.org/journal/ojg http://dx.doi.org/10.4236/ojg.2014.48026 Biozonation and Paleobathymetry on Foraminifera Upper Cretaceous Deposites of Central Iran Basins (Isfahan, Baharestan Section) Bita Ghasem Shirazi1*, Lida Bakhshandeh2, Abdollah Yazdi1 1Department of Geology, Kahnooj Branch, Islamic Azad University, Kerman, Iran 2Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran Email: *[email protected] Received 29 May 2014; revised 25 June 2014; accepted 20 July 2014 Copyright © 2014 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract In this study Late Cretaceous stratum in central Iran, Baharestan section in Isfahan area, was eva- luated by biozonation and paleobathymetry. These sediments have 89 meters thick, and strata have been formed of marl and marl limestone. In order to indicate the ancient depth of Upper Cretaceous at this time, planktonic and benthic foraminifera were studied. The percentage of the total planktonic foraminifera to the whole sample of foraminifera after the removal of indwell benthic foraminifera (%P*) using the formula D = e(3.58718 + (0.03534 × %P*)) was identified and depth of 200 - 450 meters was achieved for them. In the present investigation, 30 planktonic species of 11 genus have been identified. The Upper Cretaceous deposit was divided to 6 biozones on the basis of planktonic foraminifera which are cosmopolitan and consist of: Biozone 1—Mar- ginotruncana sigali-Dicarinella primitiva partial range zone; Biozone 2—Dicarinella concavata in- terval zone; Biozone 3—Dicarinella asymetrica total range zone; Biozone 4—Globotruncanita ele- vata partial range zone; Biozone 5—Globotruncana ventricosa interval zone; Biozone 6—Rado- truncana calcarata interval zone.
    [Show full text]
  • The Palaeontology Newsletter
    The Palaeontology Newsletter Contents100 Editorial 2 Association Business 3 Annual Meeting 2019 3 Awards and Prizes AGM 2018 12 PalAss YouTube Ambassador sought 24 Association Meetings 25 News 30 From our correspondents A Palaeontologist Abroad 40 Behind the Scenes: Yorkshire Museum 44 She married a dinosaur 47 Spotlight on Diversity 52 Future meetings of other bodies 55 Meeting Reports 62 Obituary: Ralph E. Chapman 67 Grant Reports 72 Book Reviews 104 Palaeontology vol. 62 parts 1 & 2 108–109 Papers in Palaeontology vol. 5 part 1 110 Reminder: The deadline for copy for Issue no. 101 is 3rd June 2019. On the Web: <http://www.palass.org/> ISSN: 0954-9900 Newsletter 100 2 Editorial This 100th issue continues to put the “new” in Newsletter. Jo Hellawell writes about our new President Charles Wellman, and new Publicity Officer Susannah Lydon gives us her first news column. New award winners are announced, including the first ever PalAss Exceptional Lecturer (Stephan Lautenschlager). (Get your bids for Stephan’s services in now; check out pages 34 and 107.) There are also adverts – courtesy of Lucy McCobb – looking for the face of the Association’s new YouTube channel as well as a call for postgraduate volunteers to join the Association’s outreach efforts. But of course palaeontology would not be the same without the old. Behind the Scenes at the Museum returns with Sarah King’s piece on The Yorkshire Museum (York, UK). Norman MacLeod provides a comprehensive obituary of Ralph Chapman, and this issue’s palaeontologists abroad (Rebecca Bennion, Nicolás Campione and Paige dePolo) give their accounts of life in Belgium, Australia and the UK, respectively.
    [Show full text]
  • Late Triassic (Rhaetian) Conodonts and Ichthyoliths from Chile Sansom, Ivan
    University of Birmingham Late Triassic (Rhaetian) conodonts and ichthyoliths from Chile Sansom, Ivan DOI: 10.1017/S0016756800003757 Citation for published version (Harvard): Sansom, I 2000, 'Late Triassic (Rhaetian) conodonts and ichthyoliths from Chile', Geological Magazine, vol. 137, no. 2, pp. 129-135. https://doi.org/10.1017/S0016756800003757 Link to publication on Research at Birmingham portal General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain. Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive. If you believe that this is the case for this document, please contact [email protected] providing details and we will remove access to the work immediately and investigate.
    [Show full text]
  • Upper Cretaceous Planktic Foraminiferal Biostratigraphy
    Studia UBB Geologia, 2017, 61 (1-2), 5 – 20 Upper Cretaceous planktic foraminiferal biostratigraphy Marius Dan Georgescu Department of Geoscience, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada Received: June 2017; accepted September 2017 Available online 15 September 2017 DOI: https://doi.org/10.5038/1937-8602.61.1.1297 Abstract. A high-resolution biostratigraphical zonation based on planktic foraminifera is developed for the Upper Cretaceous. It consists of twenty-five biozones defined with the aid of serial and coiled planktic foraminiferal taxa and presents the highest resolution developed with planktic foraminifera for this Series. All the index species used in biozonation are part of the practical classification associated with the evolutionary classification. The new biozonation represents a first in using data directly derived from the Theory of Evolution and its evolutionary classification extension in an application of paleontology such as biostratigraphy. By this the Theory of Evolution becomes a direct provider of data in applied studies. Keywords: Cretaceous, planktic foraminifera, biostratigraphy. INTRODUCTION generated through iterative and parallel evolution. The idea remained dormant for more than one century, until Mayr Living and fossil organism classification is not unique. (1968) revisited it and provided it with a name: evolutionary There are different classifications and methodologies that classification. Noteworthy, the expression “evolutionary were developed in the past, and the first of which we know classification” occurs in some earlier works, in general attached of is the classification of plants according to their uses to a Linnaean classification framework in which the taxa are preserved on the clay tablets in the library of Ashurbanipal at linked through ancestor-descendant relationships.
    [Show full text]
  • Rupelian Sediments of the Agbada Formation, Niger Delta
    International Journal of Scientific and Research Publications, Volume 8, Issue 1, January 2018 425 ISSN 2250-3153 Foraminiferal Biozonation And Biochronology of Priabonian – Rupelian sediments of the Agbada Formation, Niger Delta 1&2UKPONG Aniediobong Jonah, 2EKHALIALU Ogie Macaulay, 3OSUNG Wilson Edet, 4OMOKO Ejiro Newton 1Department of Geology, Gombe State Univeristy, Gombe, Gombe State, Nigeria.(Sabbatical) 2Department of Geology, University of Calabar, Calabar, Cross River State, Nigeria. 3Department of Petroleum Engineering & Geosciences. PTI Effurun, Delta State, Nigeria. 4Department of Geology, Federal University of Technology, Owerri, Imo State, Nigeria. Corresponding author: 2EKHALIALU Ogie Macaulay. [email protected]. Abstract-Foraminiferal biostratigraphic analysis was carried out on eighty (80) ditch cutting samples from two wells (well C: 13 samples, interval 2410 -2770m at 30m and well F: 67 samples, interval 2000-3320m at 20metres) located in the Northern Depobelt of the Tertiary Niger Delta. This was achieved based on the use of standard micropaleontological sample procedures and the analysis and interpretation of the foraminiferal biofacies assemblages. A total of eighty four (84) foraminifera species were recovered from the study wells consisting of thirty (30) genera, eighteen (18) families and three (3) suborders with a total foraminifera count of one thousand, eight hundred and seventy two (1872) comprising twenty four (24) planktic and one thousand, eight hundred and forty eight (1848) benthic forms respectively. The planktic and benthic foraminifera recovered from the Agbada Formation are transitional in character between the typical Late Eocene (P16/17) and the Early Oligocene (P18/19) epoch and therefore, indicate the transition between the Priabonian age and the Rupelian age.
    [Show full text]