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Les Vascoceratinae Et Les Pseudotissotiinae

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LES VASCOCERATINAE ET LES PSEUDOTISSOTIINAE (AMMONITINA) D'ASHAKA (NE NIGERIA) : RELATIONS AVEC LEUR ENVIRONNEMENT BIOSÉDIMENTAIRE THE VASCOCERATINAEA AND PSEUDOTISSOTIINAEA (AMMONITINA) FROM ASHAKA (NE NIGERIA) : RELATIONSHIPS WlTH THE BIOSEDIMENTARY ENVIRONMENT Philippe COURVILLE COURVILLE Ph. (1992) - Les Vascoceratnae et es Pseudotssotinae (Ammonitina) d'Açhaka (NE Ngera) . relatons avec leur enviannement blosedimentare [The Vaçcoceia1,naea and Psetidotfssoti!naea jAmmon,ti.?s) fiom As,ba,ks (NE Nigeria) relationsh!ps with the biosedimentary enviionment] - Bull. Centres Rech Explof.- Prod EliAquitaine. 16. 2 407~457.8 f~y, 14 p.. Bo~ssensDecember 24, 19'32 - SSN : 0396~2687 CODEN. BCREDP A purdscpnary analyss groupng the sedtmentary yeo,ogy, the sequenta! stratgraphy. !he mcropaleonto1og;cal and nacropaeontologcal aspec!s. allows us 10 renterpret tbe marine çecton of the Gonga Formaton (hypostratotypc Ashaka sect~on).The paleartolag~cal successlonç (benthon~carganiçtrç and Ammonlte papulatons) and the sedmentary unis (ensembles mted by two d!scontinutes) cari now oe deçcrbed accurateiy A dynamc nterpretator of the seres of Ammonte papulatons s proposed for the local framework of the Ashaka ste some taxa coud beong to .. autochthonous ,, neages (Vascoceratnae and Pseudotsçatnae) others are corsdered ta be ., exo~ ric ,. elements (Fagesra and Pseodaspidoceras) The settements of the Cer,omanan and Turonan marne envronments seem to be w~th~na few steps reach. Fi'çt of a. tïe progreçslve settng of subplatycone 01 paty~spheroconetethysan Vascoceratds (Nigeiiceras and V gr cauv!ni) can be obçerved Ths ç folowed by the suaden .. appearance .. of cad-serperllcone Ammontes, whch quicky dr~fttowards cad-spherocone forms (frst morphologcal c:sls) Then a second morpnolagica crlsls occurç. wh~ch car be çeen ln botn the several marpholoyical nnavations (robng and trlubercu!zaton) and the over~representation of the sub-spheioconc pole Fnaly. we wtness the grad~alacqustor of a patycone morphooyy. whch çeems 10 De hghy adapte0 to shalow waters These drlfts may be correlated wlth an externa factor (watei-sectlon fluctuations) ths one beng conlroled by local (tectonc) or genera (euçtatc) geoloycal fac!ors. The ammante çequence analyss compared ta lhe standard bostratgraphcal and sequenta frarnework. w subçequenty alow a deflnltve precse and caherent local boronaton ta be put forward Philippe Courville. Centre des Sciences de le Teffe et URA. no 157 Géodynamique sédimentaire et évolution géobiologrque. Université de Bouigogoe 6. boulevard Gabriel, F-21000 Dijon Februaiy 70,7992 Key wards : Cenomantan. Turonan. B~oçtrat~graphyVascocerat~dac (Vascocera~ tinae. Pseudot~ssot~ae),B~oloylc evolu:~on Eiistacy (sequent~alstratgraphy) Ngera (Upper~Benue) 0396~2687/92/0016~0407$ 10 20 0 1992 el! aquitane producton F-31360 Boussens 408 Ph COLRVILLE BCREDP 1E 11992) 1 2 Successon des organ smes Succession of the oiganismç 413 RESUME 1 2 1 Flores - Floras 413 1 2.2. Vertebres - Verfebrates 1 2.3. Macrofaunes benthques - Benihic macro~ launas. ...... ....... de a parte marne des çeres de a Farna or de Gong a (coupe hypostratotyp~que d Açhaka) Les successlors paleontolog~ques LES ORGANISMES NECTOPELAGIOUES Neclopela- (oraansmes berthaues et ~ou~atonçarroriia~es) et es untes gic organiçrns ........ sedmentareç (ensembles ml+es pa' deux dsco~tnu~tes)sont 2 1 Niveaux 10 a 20 - Levels 70 io 20 415 precsees 2 1.1. Pôle subplatycône à çubçphéracône - Sub~ Dans le cadre oca d~ s~ted'Asraka une nterpretal~ondyna- piatycone fo subspherocone pole . 415 mlque de l'enchaînement des peuplements ammanltiques est 2 1.2. Pôle cadiçerpentc6ne Cadiserpenlicone proposée certans taxons pourraent cançttuer des gnees auto- .. poie ............ 415 chtanes .. (Vascocerat.nae et Pseadotssot~inae) d autres sont consderés comme des éléments .. exotqueç .. (g-ées Fagesia et 2 2 Bancs 21~22. Levels 21 and 22 ......... 416 Pscudasprdoceras). 2 2.1. Faune 2lbase - Fauna 2lbotfom ..... 416 La colonsatlon des envronnerneits marns ceromano-luronens 2 2 2 Faune 2lsommet - Fauna 2ltop de a regon d Ashaka oaraît se réaçer en plusleurs étapes On 2 2 2 1 Le genre Paramammites est 11 observe d'abord une mpantaton progress.ve des Vascocera~rae plesen- a Ashaka'J - Does the Subpiatycônes ou platy-spheroc0nes d orgne :éthyçenne (Nigeii~ genus Paranarimltes occur a' ceras pus Vascoceiaç du groupe cauvini) Celle~cest suve par Ashaka 7 lï~,apparltlon orutale de forrres cadi-serpent~cônes qu dervent - 2 2 2 2 D~s~r~mnationsbasées sur a gib- rapdement vers dn pôle cadsphéracônc (prenère crse moroho- bosl'e de a coque - Dilierenfia logque). Par a sute une secorce crse morphologque se marl~ f!ons based shell gibbosity feçte d'me part par pluseu's nnovatois ornementales precoces on (costuat~onet tr~tuberculsat~on)et d autre part oar a surrepre~ 2.2 2 3 Les caractérlstlqueç ae a c olson sentaiion des formes subsolerociines Enfn an asçste à l acquçl~ des dfférentç .. genres ,. Charac- tlon graduelle d'une morphologe patycône qu paraît bel adaptee teristics of the suture !!ne of !ne à des eaux peu profondes. Ces derves parassent corrélees avec un facteur exterre (fluctuatons de l epaisseur de a trarci-e d eau) celu~~cétant cortrôlé par des facteurs geolog~ques genéraux (eusfatsrne) ou ocaiin (tectonque) L'analyse de a sequence ammontqJe dans un cadre boçtra~ 2 2 3 Faune 22 - Fauna . t~graphique et çéq~ent~elpermettra dltér~cu'ellent a propos~t~or d'une boionaton locale (Ammontes) défn.1ve préclse et cohé~ 2 3 Faunes du banc 26 - Faunas !rom leve126 2 4 Sommet de a coupe - Upper part of the section 2 4 1 Niveau 30 . Leve! 30. ....... 2 4 2 Niveau 32 Leve! 32. ....... 2 4 3 Niveau 34 - Level 34 .... 3. - MODELE D NTERPRETATON DES LIGNEES AMMONI~ TIQUES D'APRES LENREGISTREMENT DASHAKA - INTERPRETATIVE MODEL OF THE AMMONITE LINEAGES ACCORDING 10 THE ASHAKA RECORD 3.1 Lgnées autochtones et Ignées exotques Auto- TABLE DES MATIERES - CONTENTS chthonous and exofic hneages. ......... 3.2. Les Vascoceiat~naedu N~ger~anord orlental une INTRODUCTION 408 évolution contrôlée par des facteurs externes? - The Vascocerafrds of northeaçtem Nigeria an evo- lulion controiled by externa! lacfors 7 ....... LOGY AND PALEONTOLOGY. ........ 409 3.2 1 Les Ignées - 1 1. Découpage et nterprétatian des un~tesb~osedl- mentares Cuttiog out and inferpietaiion of the 3 2 2 Les nfu biosedimentaiy "nits ........... 409 1.1.1. Les un~teset leurs lhm~tes- The unifs and 4 - CONCLUSIONS their iimifs. ...... 409 5 - REFERCNCE 1 1 1 2 Descrpton des untes Descrip~ !ion O! the unifs . 409 INTRODUCTION 1 1 2. nteiprétat~anstrat~graph~que Sfratigraphic rnferprefafion .......... 411 1 1 2 1 Donnees bostratgraphques de a m~crofaune- Biosfratigraphic dafa Les niveaux marins carbonatés de a Haute-Bénoué trom the microtauna ........ 41 1 (nord-est Nigeria) sont connus depus Wooas (1911) pour 1 1 2 2 nterpretation séquentlee - Sequen- leur grande rchesse en fossiles ben conservés. apparte- Da1 inferpretafron . 41 1 nant a tous les groupes zoologques et surtout aux rnous- BCREDP 16 iiQQ21 VASCOCERATINAE ET PSt ques. Utilisant certaines analogies avec es faunes euro~ péennes et nord-africaines cet auteur attribua un âge Sa- murien aucf (Turonen inférieur) aux dépôts nigérians Par a suite. es investigations taxinomiques et biostrat- graphtques furent nombreuses . REYMENT(1954 a et b. 1955. 1971. 1973 1979. 1988). BrwBER (1957) CARTERet ai. (1962). MEISTE?(1989) n'a pas détaillé l'étude de sa colonne POPOFFet al (1986) MEISTER(1989). ZABORSKI(1990). Ces lithologique. Nous avons choisi (sauf contre-indications) analyses successives apportèrent des précisons sur l'âge d'utiliser sa numérotation (Fg 2A et 31a) des faunes du nord du bassin de a Bénoué: la série ~aieontolo~iauecaractérise essentiellement l'intervalle Cénomaniin supérieur-~uroneninférieur. même si ponctue- ement un âge Turonen moyen à Campanien a été reconnu. 1.1 DÉCOUPAGEET INTERPRETATION DES UNITÉS BIOSÉDI- MENTAIRES Les travaux biostratigraphiques de détail les pus récents révèlent certains problèmes D'une part on note les diffcul- tés pour définir une biozonation stable en Haute-Bénoué 1 1.1. Les unites et leurs !imites (250 x 250 km). celles~cétant surtout liées a des impréci- sions taxinomiques: d autre part il est difficile de réaliser 1 11 1 Reconnaissance et hiérarchisation des discontinuites des corrélations avec les autres régions du globe en raison d un endémisme assez poussé de nombreux taxons Enfin Plusieurs discontinuités sédimentaires permettent de découper la série d Ashaka en unités (Fg 2a et 3la) on note des imprécisions sur a répartition verticale locale des espèces. en raison d'un enregistrement faunique A a base de a série, DT marque le contact entre un variable ensemble gréseux quartzofeldspathique continental ou de- taique (formatons de Bima et de Yolde = Unité l de Pcpor~ Les travaux récents de géologie générale et structurale et al. 1986) et a formation marine de Gongila. Cette (ALLIX.1983. BENKHELIL,1988: POPOFFet al.. 1983, Gu;~nuil discontinuité majeure est soulignée par une croûte ferru- 1990) ont mis en évidence l'importance locale et régionale gineuse. des mouvements tectoniques contemporains de a sédimen- tation. Les relations tectonique-sédimentation ont été Dans a série marne. deux autres discontinuités ma^ décrites très précisément par GulnAua (1990) pour es jeures. (DM1 et DM2) sont matérialisées par des hard- formations continentales pré-Cénomanien supérieur (Grès grounds ,, (surfaces durcies plus ou moins ferruginisées, de Bmaj. qui sont affectées par de grands
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  • Ammonite Faunal Dynamics Across Bio−Events During the Mid− and Late Cretaceous Along the Russian Pacific Coast

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    Ammonite faunal dynamics across bio−events during the mid− and Late Cretaceous along the Russian Pacific coast ELENA A. JAGT−YAZYKOVA Jagt−Yazykova, E.A. 2012. Ammonite faunal dynamics across bio−events during the mid− and Late Cretaceous along the Russian Pacific coast. Acta Palaeontologica Polonica 57 (4): 737–748. The present paper focuses on the evolutionary dynamics of ammonites from sections along the Russian Pacific coast dur− ing the mid− and Late Cretaceous. Changes in ammonite diversity (i.e., disappearance [extinction or emigration], appear− ance [origination or immigration], and total number of species present) constitute the basis for the identification of the main bio−events. The regional diversity curve reflects all global mass extinctions, faunal turnovers, and radiations. In the case of the Pacific coastal regions, such bio−events (which are comparatively easily recognised and have been described in detail), rather than first or last appearance datums of index species, should be used for global correlation. This is because of the high degree of endemism and provinciality of Cretaceous macrofaunas from the Pacific region in general and of ammonites in particular. Key words: Ammonoidea, evolution, bio−events, Cretaceous, Far East Russia, Pacific. Elena A. Jagt−Yazykova [[email protected]], Zakład Paleobiologii, Katedra Biosystematyki, Uniwersytet Opolski, ul. Oleska 22, PL−45−052 Opole, Poland. Received 9 July 2011, accepted 6 March 2012, available online 8 March 2012. Copyright © 2012 E.A. Jagt−Yazykova. This is an open−access article distributed under the terms of the Creative Com− mons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
  • Late Cretaceous Stratigraphy and Vertebrate Faunas of the Markagunt, Paunsaugunt, and Kaiparowits Plateaus, Southern Utah

    Late Cretaceous Stratigraphy and Vertebrate Faunas of the Markagunt, Paunsaugunt, and Kaiparowits Plateaus, Southern Utah

    GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association Volume 3 2016 LATE CRETACEOUS STRATIGRAPHY AND VERTEBRATE FAUNAS OF THE MARKAGUNT, PAUNSAUGUNT, AND KAIPAROWITS PLATEAUS, SOUTHERN UTAH Alan L. Titus, Jeffrey G. Eaton, and Joseph Sertich A Field Guide Prepared For SOCIETY OF VERTEBRATE PALEONTOLOGY Annual Meeting, October 26 – 29, 2016 Grand America Hotel Salt Lake City, Utah, USA Post-Meeting Field Trip October 30–November 1, 2016 © 2016 Utah Geological Association. All rights reserved. For permission to copy and distribute, see the following page or visit the UGA website at www.utahgeology.org for information. Email inquiries to [email protected]. GEOLOGY OF THE INTERMOUNTAIN WEST an open-access journal of the Utah Geological Association Volume 3 2016 Editors UGA Board Douglas A. Sprinkel Thomas C. Chidsey, Jr. 2016 President Bill Loughlin [email protected] 435.649.4005 Utah Geological Survey Utah Geological Survey 2016 President-Elect Paul Inkenbrandt [email protected] 801.537.3361 801.391.1977 801.537.3364 2016 Program Chair Andrew Rupke [email protected] 801.537.3366 [email protected] [email protected] 2016 Treasurer Robert Ressetar [email protected] 801.949.3312 2016 Secretary Tom Nicolaysen [email protected] 801.538.5360 Bart J. Kowallis Steven Schamel 2016 Past-President Jason Blake [email protected] 435.658.3423 Brigham Young University GeoX Consulting, Inc. 801.422.2467 801.583-1146 UGA Committees [email protected] [email protected] Education/Scholarship
  • The Upper Cretaceous (Turonian) Ammonite Family Coilopoceratidae Hyatt in the Western Interior of the United States

    The Upper Cretaceous (Turonian) Ammonite Family Coilopoceratidae Hyatt in the Western Interior of the United States

    The UpperA Jt Cretaceous (Turonian)\ / Ammonite Family Goilopoceratidae Hyatt in the Western Interior of the United States GEOLOGICAL SURVEY PROFESSIONAL PAPER 1192 The Upper Cretaceous (Turonian) Ammonite Family Coilopoceratidae Hyatt in the Western Interior of the United States By WILLIAM A. COBBAN and STEPHEN C. HOOK GEOLOGICAL SURVEY PROFESSIONAL PAPER 1192 Coilopoceras, Hoplitoides, and Herrickiceras, chiefly found in New Mexico, provide a means for the correlation of Cretaceous rocks between the Western Interior, South America, Africa, and Europe UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1980 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard, Director Library of Congress Cataloging in Publication Data Cobban, William Aubrey, 1916- The Upper Cretaceous (Turonian) ammonite family Coilopoceratidae Hyatt in the Western Interior of the United States. (Geological Survey Professional Paper 1192) Bibliography: p. 24 Supt. of Docs, no: I 19.16 1. Coilopoceratidae. 2. Paleontology Cretaceous. 3. Paleontology The West. I. Hook, Stephen C., joint author. II. Title. III. Series: United States Geological Survey Professional Paper 1192. QE807.A5C64 564'.53 80-607086 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Family Coilopoceratidae Hyatt Continued Abstract................................................ 1 Genus Coilopoceras Hyatt, 1903 ................. 11 Introduction ...........................................
  • Upper Albian, Cenomanian and Lower Turonian Stratigraphy, Ammonite and Inoceramid Bivalve Faunas from the Cauvery Basin, Tamil Nadu, South India

    Upper Albian, Cenomanian and Lower Turonian Stratigraphy, Ammonite and Inoceramid Bivalve Faunas from the Cauvery Basin, Tamil Nadu, South India

    Acta Geologica Polonica, Vol. 69 (2019), No. 2, pp. 161–338 DOI: 10.24425/agp.2019.126438 Upper Albian, Cenomanian and Lower Turonian stratigraphy, ammonite and inoceramid bivalve faunas from the Cauvery Basin, Tamil Nadu, South India ANDREW S. GALE1, WILLIAM J. KENNEDY2 and IRENEUSZ WALASZCZYK3 1 School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth PO1 3QL, United Kingdom. E-mail: [email protected] 2 Oxford University Museum of Natural History, Parks Road, Oxford OX1 3PW and Department of Earth Sciences, South Parks Road, Oxford OX1 3AN, United Kingdom. E-mail: [email protected] 3 Faculty of Geology, University of Warsaw, Al Żwirki i Wigury 93, Pl-02-089 Warszawa, Poland. E-mail: [email protected] ABSTRACT: Gale, A.S., Kennedy, W.J. and Walaszczyk, I. 2019. Upper Albian, Cenomanian and Lower Turonian strati- graphy, ammonite and inoceramid bivalve faunas from the Cauvery Basin, Tamil Nadu, South India. Acta Geologica Polonica, 69 (2), 161–338. Warszawa. The lithostratigraphy, biostratigraphy, sequence stratigraphy, ammonite and inoceramid faunas of the Upper Albian, Cenomanian, and Lower Turonian Karai Formation, the highest unit of the Uttatur Group in the Pondicherry Sub-Basin of the Cauvery Basin in Tamil Nadu, south India, are documented. Detailed logs and descriptions of sections between Karai and Kulakkalnattam, Odiyam and Kunnam, and north-west of Garudamangalam are presented. They provide the evidence for an ammonite zonal scheme that can be cor- related in detail with sequences developed in Europe, with successive Upper Albian zones of Pervinquieria (Subschloenbachia) rostrata and P. (S.) perinflata (the latter on slight evidence), Cenomanian zones of Mantelli- ceras mantelli, Cunningtoniceras cunningtoni, Calycoceras (Newboldiceras) asiaticum, Pseudocalycoceras harpax, Euomphaloceras septemseriatum and Pseudspidoceras footeanum.
  • A New Fauna from the Colorado Group of Southern Montana

    A New Fauna from the Colorado Group of Southern Montana

    A NEW FAUNA FROM THE COLORADO GROUP OF SOUTHERN MONTANA. By JoHN B. REESIDE, Jr. Feet. INTRODUCTION. Telegraph Creek formation......... 320-350 Sandstones and shales. This group of beds con­ This paper describes a small but interesting tains at places in the upper part a fauna like that fauna collected in 1921 by W. T. Thorn, jr., of the Eagle sandstone, but in the lower beds it Gail F. Moulton, T. W. Stanton, and K. C. contains Uintacrinus sp., Marsupites sp. (identi­ Heald in the Crow Indian Reservation in fied by Frank Springer), Inoceramus dejormis southern Montana. The locality is in sec. 36, Meek var., Ostrea cf. 0. congesta Conrad, Baculites sp., Puzosia (Latidorsella) n. sp., and Scaphites n. T. 6 S., R. 32 E ., Big Horn County, and is 2 sp. aff. S. geinitzi D'Orbigny. • miles east of the Soap Creek oil field. Niobrara formation (top formation of Colorado The stratigraphic section in the Soap Creek group)"........................................ 400 oil field was described briefly by Thorn and Bluish calcareous shale in upper and lower Moulton in a press notice issued by the United parts; dark shale in middle. In the upper part it contains Uintacrinus socialis Grinnell (identified States Geological Survey December 5, 1921, by Frank Springer), Yoldia sp., Inoceramus, large entitled "The Soap Creek oil field, Crow Indian thick-shelled species, Ostrea congesta Conrad, Reservation, Mont." It was described also in Lunatia concinna (Hall and Meek), Tessarolax cf. a later and more general paper.1 The youngest T. hitzi White, Baculites sp., Scaphites vermi- beds present near the oil field belong to the formis Meek and Hayden, and fish scales.