A New High-Latitude Tylosaurus (Squamata, Mosasauridae) from Canada with Unique
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Tylosaurine Mosasaurs (Squamata) from the Late Cretaceous of Northern Germany
Netherlands Journal of Geosciences —– Geologie en Mijnbouw | 94 – 1 | 55-71 | 2015 doi: 10.1017/njg.2014.31 Tylosaurine mosasaurs (Squamata) from the Late Cretaceous of northern Germany J.J. Hornung1,2,* &M.Reich3,4 1 Georg-August University Gottingen,¨ Geoscience Centre, Department of Geobiology, Goldschmidt-Straße 3, 37077 Gottingen,¨ Germany 2 Current address: Fuhlsbuttler¨ Str. 611, 22337 Hamburg, Germany 3 SNSB - Bavarian State Collection for Palaeontology and Geology, Richard-Wagner-Str. 10, 80333 Munich, Germany 4 Department of Earth and Environmental Sciences, Ludwig-Maximilians University Munchen,¨ Richard-Wagner-Str. 10, 80333 Munich, Germany * Corresponding author. Email: [email protected] Manuscript received: 27 April 2014, accepted: 18 September 2014 Abstract Two genera of tylosaurine mosasaurs, Tylosaurus and Hainosaurus, are recorded for the first time from Germany. Tylosaurus sp. is represented by two isolated tooth crowns, originally described as Mosasaurus? alseni (here considered a nomen dubium) from the latest Santonian–Early Campanian, which are very similar to T. ivoensis and T. gaudryi.ThematerialofHainosaurus sp. comprises a maxillary with associated postorbitofrontal, two pterygoid teeth and several indeterminate cranial fragments. The specimen from the Late Campanian is slightly less derived than H. bernardi from the Maastrichtian in retaining labiolingually less compressed anterior maxillary teeth and unserrated pterygoid teeth with only very weak carinae. Despite only minor skeletal differences, the genus Hainosaurus is considered to be distinct from Tylosaurus because of its significant modification of the dental apparatus compared to the plesiomorphic condition in the latter. This dental morphology suggests a phylogenetic trend from a generalised-piercing marginal dentition in Tylosaurus towards the increasingly labiolingually compressed, symmetrical, strongly bicarinate cutting marginal teeth in Hainosaurus spp. -
Estesia Mongoliensis (Squamata: Anguimorpha) and the Evolution of Venom Grooves in Lizards
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by American Museum of Natural History Scientific Publications AMERICAN MUSEUM NOVITATES Number 3767, 31 pp. January 25, 2013 New materials of Estesia mongoliensis (Squamata: Anguimorpha) and the evolution of venom grooves in lizards HONG-YU YI1,2 AND MARK A. NORELL1,2 ABSTRACT New specimens of the fossil lizard Estesia mongoliensis are described from the Upper Cre- taceous of Mongolia. Phylogenetic analysis of 86 anguimorph taxa coded with 435 morphologi- cal characters and four genes confirms the placement of Estesia mongoliensis in a monophyletic Monstersauria. Extant monstersaurs, the genus Heloderma, are the only extant lizards bearing venom-transmitting teeth with a deep venom grove in the rostral carina. Compared to the crown group, stem monstersaurs are morphologically more variable in venom-delivery appa- ratus. This study has found that Estesia mongoliensis has two shallow grooves in the rostral and caudal carinae of its dentary teeth, demonstrating a primary venom-delivery apparatus. A sum- mary of venom-delivering tooth specialization in the Anguimorpha is provided, and related morphological characters are optimized on the strict consensus tree resulting from the com- bined morphological and molecular analysis of anguimorph phylogeny. The phylogeny supports a single origination of venom grooves in the Monstersauria, and indicates that grooved teeth are currently the only reliable venom-delivery apparatus to be recognized in fossil lizards. Key Words: Estesia mongoliensis, Monstersauria, venom groove, Anguimorpha INTRODUCTION Estesia mongoliensis is the oldest fossil squamate with dental grooves comparable to venom grooves in extant species. -
Estimating the Evolutionary Rates in Mosasauroids and Plesiosaurs: Discussion of Niche Occupation in Late Cretaceous Seas
Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in Late Cretaceous seas Daniel Madzia1 and Andrea Cau2 1 Department of Evolutionary Paleobiology, Institute of Paleobiology, Polish Academy of Sciences, Warsaw, Poland 2 Independent, Parma, Italy ABSTRACT Observations of temporal overlap of niche occupation among Late Cretaceous marine amniotes suggest that the rise and diversification of mosasauroid squamates might have been influenced by competition with or disappearance of some plesiosaur taxa. We discuss that hypothesis through comparisons of the rates of morphological evolution of mosasauroids throughout their evolutionary history with those inferred for contemporary plesiosaur clades. We used expanded versions of two species- level phylogenetic datasets of both these groups, updated them with stratigraphic information, and analyzed using the Bayesian inference to estimate the rates of divergence for each clade. The oscillations in evolutionary rates of the mosasauroid and plesiosaur lineages that overlapped in time and space were then used as a baseline for discussion and comparisons of traits that can affect the shape of the niche structures of aquatic amniotes, such as tooth morphologies, body size, swimming abilities, metabolism, and reproduction. Only two groups of plesiosaurs are considered to be possible niche competitors of mosasauroids: the brachauchenine pliosaurids and the polycotylid leptocleidians. However, direct evidence for interactions between mosasauroids and plesiosaurs is scarce and limited only to large mosasauroids as the Submitted 31 July 2019 predators/scavengers and polycotylids as their prey. The first mosasauroids differed Accepted 18 March 2020 from contemporary plesiosaurs in certain aspects of all discussed traits and no evidence Published 13 April 2020 suggests that early representatives of Mosasauroidea diversified after competitions with Corresponding author plesiosaurs. -
OFR21 a Guide to Fossil Sharks, Skates, and Rays from The
STATE OF DELAWARE UNIVERSITY OF DELAWARE DELAWARE GEOLOGICAL SURVEY OPEN FILE REPORT No. 21 A GUIDE TO FOSSIL SHARKS J SKATES J AND RAYS FROM THE CHESAPEAKE ANU DELAWARE CANAL AREA) DELAWARE BY EDWARD M. LAUGINIGER AND EUGENE F. HARTSTEIN NEWARK) DELAWARE MAY 1983 Reprinted 6-95 FOREWORD The authors of this paper are serious avocational students of paleontology. We are pleased to present their work on vertebrate fossils found in Delaware, a subject that has not before been adequately investigated. Edward M. Lauginiger of Wilmington, Delaware teaches biology at Academy Park High School in Sharon Hill, Pennsyl vania. He is especially interested in fossils from the Cretaceous. Eugene F. Hartstein, also of Wilmington, is a chemical engineer with a particular interest in echinoderm and vertebrate fossils. Their combined efforts on this study total 13 years. They have pursued the subject in New Jersey, Maryland, and Texas as well as in Delaware. Both authors are members of the Mid-America Paleontology Society, the Delaware Valley Paleontology Society, and the Delaware Mineralogical Society. We believe that Messrs. Lauginiger and Hartstein have made a significant technical contribution that will be of interest to both professional and amateur paleontologists. Robert R. Jordan State Geologist A GUIDE TO FOSSIL SHARKS, SKATES, AND RAYS FROM THE CHESAPEAKE AND DELAWARE CANAL AREA, DELAWARE Edward M. Lauginiger and Eugene F. Hartstein INTRODUCTION In recent years there has been a renewed interest by both amateur and professional paleontologists in the rich upper Cretaceous exposures along the Chesapeake and Delaware Canal, Delaware (Fig. 1). Large quantities of fossil material, mostly clams, oysters, and snails have been collected as a result of this activity. -
ONTOGENIA DE Iguana Iguana (Linnaeus, 1758): ESTÁGIOS EMBRIONÁRIOS E DESENVOLVIMENTO DO ESQUELETO
UNIVERSIDADE DE BRASÍLIA Instituto de Ciências Biológicas Programa de Pós-Graduação em Biologia Animal ONTOGENIA DE Iguana iguana (Linnaeus, 1758): ESTÁGIOS EMBRIONÁRIOS E DESENVOLVIMENTO DO ESQUELETO DOUTORANDO: FABIANO CAMPOS LIMA ORIENTADOR: DR. ANTONIO SEBBEN BRASÍLIA – DF JUNHO, 2015 ONTOGENIA DE Iguana iguana (Linnaeus, 1758): ESTÁGIOS EMBRIONÁRIOS E DESENVOLVIMENTO DO ESQUELETO FABIANO CAMPOS LIMA Tese apresentada ao Programa de Pós- Graduação em Biologia Animal do Instituto de Ciências Biológicas da Universidade de Brasília com requisito parcial para obtenção do título de Doutor em Biologia Animal. ORIENTADOR: DR. ANTONIO SEBBEN BRASÍLIA – DF JUNHO, 2015 UNIVERSIDADE DE BRASÍLIA Instituto de Ciências Biológicas Programa de Pós-Graduação em Biologia Animal FABIANO CAMPOS LIMA Título da Tese Ontogenia de Iguana iguana (Linnaeus, 1758): Estágios Embrionários e Desenvolvimento do Esqueleto Prof. Dr. Antonio Sebben Presidente/Orientador UnB Prof. Dr. Eduardo Maurício Mendes de Lima Profa. Dra. Lilian Gimenes Giugliano Membro Efetivo Externo Membro Efetivo Externo UnB UnB Profa. Dra. Aline Pic-Taylor Prof. Dr. Osmindo Rodrigues Pires Junior Membro Efetivo Interno Membro Efetivo Interno UnB UnB Profa. Dra. Jussara Rocha Ferreira Membro Suplente UnB Brasília, 23 de Junho de 2015 Existe um único caminho que nos leva a plenitude e a herança que o mundo nos permite: o conhecimento. AGRADECIMENTOS Nenhuma grande jornada pode ser concluída sem que muitos personagens tenham participado dela. Poder expressar gratidão por aqueles que tornaram sua trajetória mais exequível é motivo de satisfação, pois nem todos são gratos àqueles que o ajudaram a transpor as pedras em seu caminho. Sou imensamente grato ao meu orientador, o professor Antonio Sebben, que desde o primeiro dia depositou confiança em mim, um rapaz franzino que apareceu do nada com o objetivo de se tornar um doutor. -
The Dinosaur Park - Bearpaw Formation Transition in the Cypress Hills Region of Southwestern Saskatchewan, Canada Meagan M
The Dinosaur Park - Bearpaw Formation Transition in the Cypress Hills Region of Southwestern Saskatchewan, Canada Meagan M. Gilbert Department of Geological Sciences, University of Saskatchewan; [email protected] Summary The Upper Cretaceous Dinosaur Park Formation (DPF) is a south- and eastward-thinning fluvial to marginal marine clastic-wedge in the Western Canadian Sedimentary Basin. The DPF is overlain by the Bearpaw Formation (BF), a fully marine clastic succession representing the final major transgression of the epicontinental Western Interior Seaway (WIS) across western North America. In southwestern Saskatchewan, the DPF is comprised of marginal marine coal, carbonaceous shale, and heterolithic siltstone and sandstone grading vertically into marine sandstone and shale of the Bearpaw Formation. Due to Saskatchewan’s proximity to the paleocoastline, 5th order transgressive cycles resulted in the deposition of multiple coal seams (Lethbridge Coal Zone; LCZ) in the upper two-thirds of the DPF in the study area. The estimated total volume of coal is 48109 m3, with a gas potential of 46109 m3 (Frank, 2005). The focus of this study is to characterize the facies and facies associations of the DPF, the newly erected Manâtakâw Member, and the lower BF in the Cypress Hills region of southwestern Saskatchewan utilizing core, outcrop, and geophysical well log data. This study provides a comprehensive sequence stratigraphic overview of the DPF-BF transition in Saskatchewan and the potential for coalbed methane exploration. Introduction The Dinosaur Park and Bearpaw Formations in Alberta, and its equivalents in Montana, have been the focus of several sedimentologic and stratigraphic studies due to exceptional outcrop exposure and extensive subsurface data (e.g., McLean, 1971; Wood, 1985, 1989; Eberth and Hamblin, 1993; Tsujita, 1995; Catuneanu et al., 1997; Hamblin, 1997; Rogers et al., 2016). -
(Squamata: Mosasauridae) from the Late Cretaceous Of
C. R. Palevol 14 (2015) 483–493 Contents lists available at ScienceDirect Comptes Rendus Palevol www.sci encedirect.com General Palaeontology, Systematics and Evolution (Vertebrate Palaeontology) An halisaurine (Squamata: Mosasauridae) from the Late Cretaceous of Patagonia, with a preserved tympanic disc: Insights into the mosasaur middle ear Un halisauriné (Squamata : Mosasauridae) du Crétacé supérieur de Patagonie, à disque tympanique conservé : un aperc¸ u de l’oreille moyenne des mosasaures a,∗ b Marta S. Fernández , Marianella Talevi a CONICET - División Paleontología Vertebrados, Museo de La Plata, Paseo del Bosque s/n, 1900 La Plata, Argentina b CONICET - Instituto de Investigación en Paleobiología y Geología, Universidad Nacional de Río Negro, Isidro Lobo y Belgrano, 8332 General Roca, Río Negro, Argentina a b s t r a c t a r t i c l e i n f o Article history: Halisaurinae is a subfamily of enigmatic, small- to medium-sized mosasauroids, which Received 15 September 2014 retain a mosaic of primitive and derived features. The first record of a South American Hal- Accepted after revision 13 May 2015 isaurus with precise stratigraphic information includes a quadrate carrying a tympanic disc together with twelve vertebrae, collected in the Late Maastrichtian of Jagüel Formation Handled by Nathalie Bardet in northern Patagonia (Argentina). The preservation of a tympanic disc allows exploring and discussing the mechanisms of sound transmission in these mosasauroids. The loca- Keywords: tion of the tympanic disc resembles that one formed by the extracolumella of aquatic Halisaurus turtles and at least one extant lizard. Based on morphological comparison of the middle Patagonia ear we discuss previous hypotheses on the modification of the tympanic middle ear system Late Maastrichtian of mosasauroids for underwater hearing, in a manner similar to that observed in aquatic Cretaceous turtles. -
TGI Strat Column 2009.Cdr
STRATIGRAPHIC CORRELATION CHART TGI II: Williston Basin Architecture and Hydrocarbon Potential in Eastern Saskatchewan and Western Manitoba EASTERN MANITOBA PERIOD MANITOBA SUBSURFACE SASKATCHEWAN OUTCROP ERA glacial drift glacial drift glacial drift Quaternary Wood Mountain Formation Peace Garden Peace Garden Member Tertiary Member Ravenscrag Formation CENOZOIC Formation Goodlands Member Formation Goodlands Member Turtle Mountain Turtle Mountain Turtle Frenchman Formation Whitemud Formation Boissevain Formation Boissevain Formation Eastend Formation Coulter Member Coulter Member Bearpaw Formation Odanah Member Belly River “marker” Odanah Member Belly River Formation “lower” Odanah Member Millwood Member Lea Park Formation Millwood Member MONTANA GROUP Pembina Member Pembina Member Pierre Shale Pierre Shale Milk River Formation Gammon Ferruginous Member Gammon Ferruginous Member Niobrara Formation Chalky Unit Boyne Member Boyne Member Boyne Calcareous Shale Unit Member Carlile Morden Member Carlile upper Formation Morden Member Formation Morden Member Carlile Formation Assiniboine Marco Calcarenite Assiniboine Member Member CRETACEOUS Second White Specks Laurier Limestone Beds Favel Favel Keld Keld Member Member Formation Formation Belle Fourche Formation Belle Fourche Member MESOZOIC COLORADO GROUP Belle Fourche Member upper Fish Scale Formation Fish Scale Zone upper Base of Fish Scale marker Base of Fish Scale marker Westgate Formation Westgate Member lower Westgate Member Newcastle Formation Newcastle Member lower Viking Sandstone -
Mesozoic Marine Reptile Palaeobiogeography in Response to Drifting Plates
ÔØ ÅÒÙ×Ö ÔØ Mesozoic marine reptile palaeobiogeography in response to drifting plates N. Bardet, J. Falconnet, V. Fischer, A. Houssaye, S. Jouve, X. Pereda Suberbiola, A. P´erez-Garc´ıa, J.-C. Rage, P. Vincent PII: S1342-937X(14)00183-X DOI: doi: 10.1016/j.gr.2014.05.005 Reference: GR 1267 To appear in: Gondwana Research Received date: 19 November 2013 Revised date: 6 May 2014 Accepted date: 14 May 2014 Please cite this article as: Bardet, N., Falconnet, J., Fischer, V., Houssaye, A., Jouve, S., Pereda Suberbiola, X., P´erez-Garc´ıa, A., Rage, J.-C., Vincent, P., Mesozoic marine reptile palaeobiogeography in response to drifting plates, Gondwana Research (2014), doi: 10.1016/j.gr.2014.05.005 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ACCEPTED MANUSCRIPT Mesozoic marine reptile palaeobiogeography in response to drifting plates To Alfred Wegener (1880-1930) Bardet N.a*, Falconnet J. a, Fischer V.b, Houssaye A.c, Jouve S.d, Pereda Suberbiola X.e, Pérez-García A.f, Rage J.-C.a and Vincent P.a,g a Sorbonne Universités CR2P, CNRS-MNHN-UPMC, Département Histoire de la Terre, Muséum National d’Histoire Naturelle, CP 38, 57 rue Cuvier, -
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comptes rendus palevol 2021 20 20 iles — Jean- pt Cl re au d d n e a R s a n g a e i — b i h P p a l a m e a o f b o i o y l h o p g a y r g a o n e d g p o i a l b a o e DIRECTEURS DE LA PUBLICATION / PUBLICATION DIRECTORS : Bruno David, Président du Muséum national d’Histoire naturelle Étienne Ghys, Secrétaire perpétuel de l’Académie des sciences RÉDACTEURS EN CHEF / EDITORS-IN-CHIEF : Michel Laurin (CNRS), Philippe Taquet (Académie des sciences) ASSISTANTE DE RÉDACTION / ASSISTANT EDITOR : Adenise Lopes (Académie des sciences ; [email protected]) MISE EN PAGE / PAGE LAYOUT : Fariza Sissi (Muséum national d’Histoire naturelle ; [email protected]) RÉVISIONS LINGUISTIQUES DES TEXTES ANGLAIS / ENGLISH LANGUAGE REVISIONS : Kevin Padian (University of California at Berkeley) RÉDACTEURS ASSOCIÉS / ASSOCIATE EDITORS : Micropaléontologie/Micropalaeontology Maria Rose Petrizzo (Università di Milano, Milano) Paléobotanique/Palaeobotany Cyrille Prestianni (Royal Belgian Institute of Natural Sciences, Brussels) Métazoaires/Metazoa Annalisa Ferretti (Università di Modena e Reggio Emilia, Modena) Paléoichthyologie/Palaeoichthyology Philippe Janvier (Muséum national d’Histoire naturelle, Académie des sciences, Paris) Amniotes du Mésozoïque/Mesozoic amniotes Hans-Dieter Sues (Smithsonian National Museum of Natural History, Washington) Tortues/Turtles Juliana Sterli (CONICET, Museo Paleontológico Egidio Feruglio, Trelew) Lépidosauromorphes/Lepidosauromorphs Hussam Zaher (Universidade de São Paulo) Oiseaux/Birds Eric Buffetaut (CNRS, École Normale Supérieure, Paris) Paléomammalogie (mammifères de moyenne et grande taille)/Palaeomammalogy (large and mid-sized mammals) Lorenzo Rook* (Università degli Studi di Firenze, Firenze) Paléomammalogie (petits mammifères sauf Euarchontoglires)/Palaeomammalogy (small mammals except for Euarchontoglires) Robert Asher (Cambridge University, Cambridge) Paléomammalogie (Euarchontoglires)/Palaeomammalogy (Euarchontoglires) K. -
Final Copy 2019 10 01 Herrera
This electronic thesis or dissertation has been downloaded from Explore Bristol Research, http://research-information.bristol.ac.uk Author: Herrera Flores, Jorge Alfredo A Title: The macroevolution and macroecology of Mesozoic lepidosaurs General rights Access to the thesis is subject to the Creative Commons Attribution - NonCommercial-No Derivatives 4.0 International Public License. A copy of this may be found at https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode This license sets out your rights and the restrictions that apply to your access to the thesis so it is important you read this before proceeding. Take down policy Some pages of this thesis may have been removed for copyright restrictions prior to having it been deposited in Explore Bristol Research. However, if you have discovered material within the thesis that you consider to be unlawful e.g. breaches of copyright (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please contact [email protected] and include the following information in your message: •Your contact details •Bibliographic details for the item, including a URL •An outline nature of the complaint Your claim will be investigated and, where appropriate, the item in question will be removed from public view as soon as possible. This electronic thesis or dissertation has been downloaded from Explore Bristol Research, http://research-information.bristol.ac.uk Author: Herrera Flores, Jorge Alfredo A Title: The macroevolution and macroecology of Mesozoic lepidosaurs General rights Access to the thesis is subject to the Creative Commons Attribution - NonCommercial-No Derivatives 4.0 International Public License. -
Geological Survey
DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY ISTo. 162 WASHINGTON GOVERNMENT PRINTING OFFICE 1899 UNITED STATES GEOLOGICAL SUEVEY CHAKLES D. WALCOTT, DIRECTOR Olf NORTH AMERICAN GEOLOGY, PALEONTOLOGY, PETROLOGY, AND MINERALOGY FOR THE YEAR 1898 BY FRED BOUG-HTOISr WEEKS WASHINGTON GOVERNMENT PRINTING OFFICE 1899 CONTENTS, Page. Letter of transmittal.......................................... ........... 7 Introduction................................................................ 9 List of publications examined............................................... 11 Bibliography............................................................... 15 Classified key to the index .................................................. 107 Indiex....................................................................... 113 LETTER OF TRANSMITTAL. DEPARTMENT OF THE INTERIOR, UNITED STATES GEOLOGICAL SURVEY. Washington, D. C., June 30,1899. SIR: I have the honor to transmit herewith the manuscript of a Bibliography and Index o'f North American Geology, Paleontology, Petrology, and Mineralogy for the Year 1898, and to request that it be published as a bulletin of the Survey. Very respectfully, F. B. WEEKS. Hon. CHARLES D. WALCOTT, Director United States Geological Survey. 1 I .... v : BIBLIOGRAPHY AND INDEX OF NORTH AMERICAN GEOLOGY, PALEONTOLOGY, PETROLOGY, AND MINERALOGY FOR THE YEAR 1898. ' By FEED BOUGHTON WEEKS. INTRODUCTION. The method of preparing and arranging the material of the Bibli ography and Index for 1898 is similar to that adopted for the previous publications 011 this subject (Bulletins Nos. 130,135,146,149, and 156). Several papers that should have been entered in the previous bulletins are here recorded, and the date of publication is given with each entry. Bibliography. The bibliography consists of full titles of separate papers, classified by authors, an abbreviated reference to the publica tion in which the paper is printed, and a brief summary of the con tents, each paper being numbered for index reference.