018153232.Pdf
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
A New Early Cretaceous Lizard with Well-Preserved Scale Impressions from Western Liaoning , China*
PROGRESS IN NATURAL SCIENCE Vol .15 , N o .2 , F ebruary 2005 A new Early Cretaceous lizard with well-preserved scale impressions from western Liaoning , China* JI Shu' an ** (S chool of Earth and S pace Sciences, Peking University , Beijing 100871 , China) Received May 14 , 2004 ;revised September 29 , 2004 Abstract A new small lizard , Liaoningolacerta brevirostra gen .et sp .nov ., from the Early Cretaceous Yixian Formation of w estern Liaoning is described in detail.The new specimen w as preserved not only by the skeleton , but also by the exceptionally clear scale impressions.This lizard can be included w ithin the taxon Scleroglossa based on its 26 or more presacrals, cruciform interclavicle with a large anterior p rocess, moderately elongated pubis, and slightly notched distal end of tibia .The scales vary evidently in size and shape at different parts of body :small and rhomboid ventral scales, tiny and round limb scales, and large and longitudinally rectangular caudal scales that constitute the caudal w horls.This new finding provides us with more information on the lepidosis of the Mesozoic lizards. Keywords: new genus, Squamata, skeleton, lepidosis, Early Cretaceous, western Liaoning . Lizards are majo r groups in the Late Mesozoic Etymology:Liaoning , the province where the Jehol Biota of w estern Liaoning and the adjacent holoty pe w as collected ;lacerta (Latin), lizard . regions, no rtheastern China .Several fossil lizards Brevi- (Latin), short ;rostra (Latin), snout . have been found from the Yixian Formation , the lower unit of the Early C retaceous Jehol G roup in Holotype :An articulated skeleton w ith its rig ht w hich the feathered theropods , primitive birds , early fo relimb and mid to posterior caudals missing (GM V mamm als and angiosperms were discovered in the past 1580 ; National Geological Museum of China , decade[ 1, 2] . -
Publications (Published, in Press, Accepted, Or in Revision). * Indicates Undergraduate Mentee
Publications (published, in press, accepted, or in revision). * indicates undergraduate mentee 14. Scarpetta SG. Iguanian lizards from the Split Rock Formation, Wyoming: exploring the modernization of the North American lizard fauna. Journal of Systematic Palaeontology. In press. 13. Scarpetta SG, Ledesma DT, Llauger FO, White BA. 2020. Evolution of North American lizards. eLS 1(4), 705-717. https://doi.org/10.1002/9780470015902.a0029078. Invited submission. All authors contributed equally to this work. 12. Scarpetta SG. 2020. Effects of phylogenetic uncertainty on fossil identification illustrated by a new and enigmatic Eocene iguanian. Scientific Reports 10(1), 1-10. https://doi.org/10.1038/s41598-020-72509-2 11. Scarpetta SG. 2020. Combined-evidence analyses of ultraconserved elements and morphological data: an empirical example in iguanian lizards. Biology Letters 16(8), 20200356. https://doi.org/10.1098/rsbl.2020.0356 10. Scarpetta SG. 2020. Unusual lizard fossil from the Miocene of Nebraska and a minimum age for cnemidophorine teiids. Royal Society Open Science 7(8), 200317. http://dx.doi.org/10.1098/rsos.200317 9. Scarpetta SG, Bell CJ. 2020. Novel and bizarre abnormalities of the tooth row in side- blotched lizards (Uta) and rock lizards (Petrosaurus). The Anatomical Record 303, 2014-2025. https://doi.org/10.1002/ar.24279 8. Scarpetta SG. 2019. The first known fossil Uma: Ecological evolution and the origins of North American fringe-toed lizards. BMC Evolutionary Biology 19(178), 1-22. https://doi.org/10.1186/s12862-019-1501-5 7. Scarpetta SG. 2019. Aneides hardii (Sacramento Mountains Salamander). Catalogue of American Amphibians and Reptiles 921, 1-23. -
A Redescription and Phylogenetic Analysis of the Cretaceous Fossil Lizard Polyglyphanodon Sternbergi Gilmore, 1940
A Redescription and Phylogenetic Analysis of the Cretaceous Fossil Lizard Polyglyphanodon sternbergi Gilmore, 1940 by Meredith Austin Fontana B.S. in Biology, May 2011, The University of Texas at Austin A Thesis submitted to The Faculty of The Columbian College of Arts and Sciences of The George Washington University in partial fulfillment of the requirements for the degree of Master of Science August 31, 2014 Thesis directed by James M. Clark Ronald Weintraub Professor of Biology © Copyright 2014 by Meredith Austin Fontana All rights reserved ii This thesis is dedicated to the memory of my grandmother, Lee Landsman Zelikow – my single greatest inspiration, whose brilliant mind and unconditional love has profoundly shaped and continues to shape the person I am today. iii ACKNOWLEDGEMENTS I am deeply grateful to my graduate advisor Dr. James Clark for his support and guidance throughout the completion of this thesis. This work would not have been possible without his invaluable assistance and commitment to my success, and it has been a privilege to be his student. I would also like to express my appreciation to the additional members of my Master’s examination committee, Dr. Alexander Pyron and Dr. Hans-Dieter Sues, for generously contributing their knowledge and time toward this project and for providing useful comments on the manuscript of this thesis. I am especially grateful to Dr. Sues for allowing me access to the exquisite collection of Polyglyphanodon sternbergi specimens at the National Museum of Natural History. I am also extremely thankful to the many faculty members, colleagues and friends at the George Washington University who have shared their wisdom and given me persistent encouragement. -
The Sclerotic Ring: Evolutionary Trends in Squamates
The sclerotic ring: Evolutionary trends in squamates by Jade Atkins A Thesis Submitted to Saint Mary’s University, Halifax, Nova Scotia in Partial Fulfillment of the Requirements for the Degree of Master of Science in Applied Science July, 2014, Halifax Nova Scotia © Jade Atkins, 2014 Approved: Dr. Tamara Franz-Odendaal Supervisor Approved: Dr. Matthew Vickaryous External Examiner Approved: Dr. Tim Fedak Supervisory Committee Member Approved: Dr. Ron Russell Supervisory Committee Member Submitted: July 30, 2014 Dedication This thesis is dedicated to my family, friends, and mentors who helped me get to where I am today. Thank you. ! ii Table of Contents Title page ........................................................................................................................ i Dedication ...................................................................................................................... ii List of figures ................................................................................................................. v List of tables ................................................................................................................ vii Abstract .......................................................................................................................... x List of abbreviations and definitions ............................................................................ xi Acknowledgements .................................................................................................... -
New Lizards and Rhynchocephalians from the Lower Cretaceous of Southern Italy
New lizards and rhynchocephalians from the Lower Cretaceous of southern Italy SUSAN. E. EVANS, PASQUALE RAIA, and CARMELA BARBERA Evans, S.E., Raia, P., and Barbera, C. 2004. New lizards and rhynchocephalians from the Lower Cretaceous of southern Italy. Acta Palaeontologica Polonica 49 (3): 393–408. The Lower Cretaceous (Albian age) locality of Pietraroia, near Benevento in southern Italy, has yielded a diverse assem− blage of fossil vertebrates, including at least one genus of rhynchocephalian (Derasmosaurus) and two named lizards (Costasaurus and Chometokadmon), as well as the exquisitely preserved small dinosaur, Scipionyx. Here we describe ma− terial pertaining to a new species of the fossil lizard genus Eichstaettisaurus (E. gouldi sp. nov.). Eichstaettisaurus was first recorded from the Upper Jurassic (Tithonian age) Solnhofen Limestones of Germany, and more recently from the basal Cretaceous (Berriasian) of Montsec, Spain. The new Italian specimen provides a significant extension to the tempo− ral range of Eichstaettisaurus while supporting the hypothesis that the Pietraroia assemblage may represent a relictual is− land fauna. The postcranial morphology of the new eichstaettisaur suggests it was predominantly ground−living. Further skull material of E. gouldi sp. nov. was identified within the abdominal cavity of a second new lepidosaurian skeleton from the same locality. This second partial skeleton is almost certainly rhynchocephalian, based primarily on foot and pelvic structure, but it is not Derasmosaurus and cannot be accommodated within any known genus due to the unusual morphology of the tail vertebrae. Key words: Lepidosauria, Squamata, Rhynchocephalia, palaeobiogeography, predation, Cretaceous, Italy. Susan E. Evans [[email protected]], Department of Anatomy and Developmental Biology, University College London, Gower Street, London WC1E 6BT, England; Pasquale Raia [[email protected]] and Carmela Barbera [[email protected]], Dipartimento di Paleontologia, Università di Napoli, Largo S. -
A Small Lepidosauromorph Reptile from the Early Triassic of Poland
A SMALL LEPIDOSAUROMORPH REPTILE FROM THE EARLY TRIASSIC OF POLAND SUSAN E. EVANS and MAGDALENA BORSUK−BIAŁYNICKA Evans, S.E. and Borsuk−Białynicka, M. 2009. A small lepidosauromorph reptile from the Early Triassic of Poland. Palaeontologia Polonica 65, 179–202. The Early Triassic karst deposits of Czatkowice quarry near Kraków, southern Poland, has yielded a diversity of fish, amphibians and small reptiles. Two of these reptiles are lepido− sauromorphs, a group otherwise very poorly represented in the Triassic record. The smaller of them, Sophineta cracoviensis gen. et sp. n., is described here. In Sophineta the unspecial− ised vertebral column is associated with the fairly derived skull structure, including the tall facial process of the maxilla, reduced lacrimal, and pleurodonty, that all resemble those of early crown−group lepidosaurs rather then stem−taxa. Cladistic analysis places this new ge− nus as the sister group of Lepidosauria, displacing the relictual Middle Jurassic genus Marmoretta and bringing the origins of Lepidosauria closer to a realistic time frame. Key words: Reptilia, Lepidosauria, Triassic, phylogeny, Czatkowice, Poland. Susan E. Evans [[email protected]], Department of Cell and Developmental Biology, Uni− versity College London, Gower Street, London, WC1E 6BT, UK. Magdalena Borsuk−Białynicka [[email protected]], Institut Paleobiologii PAN, Twarda 51/55, PL−00−818 Warszawa, Poland. Received 8 March 2006, accepted 9 January 2007 180 SUSAN E. EVANS and MAGDALENA BORSUK−BIAŁYNICKA INTRODUCTION Amongst living reptiles, lepidosaurs (snakes, lizards, amphisbaenians, and tuatara) form the largest and most successful group with more than 7 000 widely distributed species. The two main lepidosaurian clades are Rhynchocephalia (the living Sphenodon and its extinct relatives) and Squamata (lizards, snakes and amphisbaenians). -
From the Late Cretaceous of the Gobi Desert
Acta Palaeontologica Poionica Vol. 29, No. 1-2 pp. 51-81; pIs. 14-19 Warszawa, 1984 MAGDALENA BORSUK-BIALYNICKA and SCOTT M. MOODY PRISCAGAMINAE. A NEW SUBFAMILY OF THE AGAMIDAE (SAURI A) FROM THE LATE CRETACEOUS OF THE GOBI DESERT BORSUK-BIAl.YNICKA, M. and MOODY, S. M.: Prlscagamlnae, a new sUbfamily of the Agamldae (Saurla) from the Late Cretaceous of the Gobi Desert. Acta Palaeont. Polonlca, 29, 1-2, 51-81. Several new and well preserved lizard skulls from the Late Cretaceous of the Gobi Desert of Mongolia, referred to as MlmeosauTUs crassus Gilmore, 1943 In the . literature, are assigned to two new genera and species, Prtscagama gOblensls and Pleurodontagama aenigmatodes. They, together with Mlmeosaurus crassus, comprise a newly described sUbfamily Prlscagamlnae of the family Agamldae. Assignement of Mimeosaurus to this subfamily Is tentative since the new speci mens of M. crassus are fragmentary. Comparative analysis of skull characters In different iguanlan families and those of the lizards here described suggests existence of a monophyletic taxon Including agamids, Uromasttx-Leiolepts group and Priscagama group but not chamaelonlds. Familial status and the name Agamldae are retained for this taxon. Agamlds, uromastlclds and prlscagamids are consequently given sUbfamlllal status until new evidence comes. Key w 0 r d s: Reptilia, Saurla, Agamldae, Cretaceous, Mongolia. Magdalena Borsuk-Bialynicka, Zaklad Paleoblologtl, Polska Akademia Nauk, OZ-0811 'W ar szaw a, al. l1:wlrkl I Wigury 113, Poland; Scott M. Moody, Department Of Zoological and Biomedical Sciences, and College of Osteopathic Medicine, Ohio University Athens, Ohio, USA. Received: November I98Z . INTRODUCTION This paper concerns several nearly' complete skulls and mandibles and fragments of skulls and mandibles which were collected by the Polish Mongolian Palaeontological Expeditions to the Gobi Desert of Mongolia between 1963 and 1971. -
Tiago Rodrigues Simões
Diapsid Phylogeny and the Origin and Early Evolution of Squamates by Tiago Rodrigues Simões A thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in SYSTEMATICS AND EVOLUTION Department of Biological Sciences University of Alberta © Tiago Rodrigues Simões, 2018 ABSTRACT Squamate reptiles comprise over 10,000 living species and hundreds of fossil species of lizards, snakes and amphisbaenians, with their origins dating back at least as far back as the Middle Jurassic. Despite this enormous diversity and a long evolutionary history, numerous fundamental questions remain to be answered regarding the early evolution and origin of this major clade of tetrapods. Such long-standing issues include identifying the oldest fossil squamate, when exactly did squamates originate, and why morphological and molecular analyses of squamate evolution have strong disagreements on fundamental aspects of the squamate tree of life. Additionally, despite much debate, there is no existing consensus over the composition of the Lepidosauromorpha (the clade that includes squamates and their sister taxon, the Rhynchocephalia), making the squamate origin problem part of a broader and more complex reptile phylogeny issue. In this thesis, I provide a series of taxonomic, phylogenetic, biogeographic and morpho-functional contributions to shed light on these problems. I describe a new taxon that overwhelms previous hypothesis of iguanian biogeography and evolution in Gondwana (Gueragama sulamericana). I re-describe and assess the functional morphology of some of the oldest known articulated lizards in the world (Eichstaettisaurus schroederi and Ardeosaurus digitatellus), providing clues to the ancestry of geckoes, and the early evolution of their scansorial behaviour. -
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. -
Microvertebrates of the Lourinhã Formation (Late Jurassic, Portugal)
Alexandre Renaud Daniel Guillaume Licenciatura em Biologia celular Mestrado em Sistemática, Evolução, e Paleobiodiversidade Microvertebrates of the Lourinhã Formation (Late Jurassic, Portugal) Dissertação para obtenção do Grau de Mestre em Paleontologia Orientador: Miguel Moreno-Azanza, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Co-orientador: Octávio Mateus, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Júri: Presidente: Prof. Doutor Paulo Alexandre Rodrigues Roque Legoinha (FCT-UNL) Arguente: Doutor Hughes-Alexandres Blain (IPHES) Vogal: Doutor Miguel Moreno-Azanza (FCT-UNL) Júri: Dezembro 2018 MICROVERTEBRATES OF THE LOURINHÃ FORMATION (LATE JURASSIC, PORTUGAL) © Alexandre Renaud Daniel Guillaume, FCT/UNL e UNL A Faculdade de Ciências e Tecnologia e a Universidade Nova de Lisboa tem o direito, perpétuo e sem limites geográficos, de arquivar e publicar esta dissertação através de exemplares impressos reproduzidos em papel ou de forma digital, ou por qualquer outro meio conhecido ou que venha a ser inventado, e de a divulgar através de repositórios científicos e de admitir a sua cópia e distribuição com objetivos educacionais ou de investigação, não comerciais, desde que seja dado crédito ao autor e editor. ACKNOWLEDGMENTS First of all, I would like to dedicate this thesis to my late grandfather “Papi Joël”, who wanted to tie me to a tree when I first start my journey to paleontology six years ago, in Paris. And yet, he never failed to support me at any cost, even if he did not always understand what I was doing and why I was doing it. He is always in my mind. Merci papi ! This master thesis has been one-year long project during which one there were highs and lows. -
La Cantalera: an Exceptional Window Onto the Vertebrate Biodiversity of the Hauterivian-Barremian Transition in the Iberian Peninsula
ISSN (print): 1698-6180. ISSN (online): 1886-7995 www.ucm.es/info/estratig/journal.htm Journal of Iberian Geology 36 (2) 2010: 205-224 doi:10.5209/rev_JIGE.2010.v36.n2.8 La Cantalera: an exceptional window onto the vertebrate biodiversity of the Hauterivian-Barremian transition in the Iberian Peninsula La Cantalera: una excepcional ventana a la biodiversidad del tránsito Hauteriviense- Barremiense en la Península Ibérica J.I. Canudo1, J.M. Gasca1, M. Aurell2, A. Badiola1, H.-A. Blain3, P. Cruzado-Caballero1, D. Gómez- Fernández1, M. Moreno-Azanza1, J. Parrilla1, R. Rabal-Garcés1, J. I. Ruiz-Omeñaca1,4 1Grupo Aragosaurus (http://www.aragosaurus.com). Universidad de Zaragoza. 50009 Zaragoza, Spain. [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected] 2Estratigrafía. Universidad de Zaragoza. 50009 Zaragoza. Spain. [email protected] 3Institut Català de Paleoecologia Humana y Evolució Social (Unitat asociada al CSIC). Universitat Rovira i Virgili. 43005 Tarragona. Spain. [email protected] 4Museo del Jurásico de Asturias (MUJA). 33328 Colunga. Asturias. Spain. [email protected] Received: 15/11/09 / Accepted: 30/06/10 Abstract La Cantalera is an accumulation site for fossil vertebrates consisting mainly of teeth and isolated postcranial remains. It has the greatest vertebrate biodiversity of any site from the Hauterivian-Barremian transition in the Iberian Peninsula. Up to now, 31 vertebrate taxa have been recognized: an osteichthyan (Teleostei indet.), two amphibians (Albanerpetonidae indet. and Discoglos- sidae indet.), a chelonian (Pleurosternidae? indet.), a lizard (Paramacellodidae? indet.), four crocodylomorphs (cf. Theriosuchus sp., Bernissartiidae indet., Goniopholididae indet., cf. -
An Early Eocene Gecko from Baltic Amber and Its Implications for the Evolution of Gecko Adhesion
J. Zool., Lond. (2005) 265, 327–332 C 2005 The Zoological Society of London Printed in the United Kingdom DOI:10.1017/S0952836904006259 An Early Eocene gecko from Baltic amber and its implications for the evolution of gecko adhesion Aaron M. Bauer1*, Wolfgang Bohme¨ 2 and Wolfgang Weitschat3 1 Department of Biology, Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, U.S.A. 2 Zoologisches Forschungsinstitut und Museum Alexander Koenig, Adenauerallee 160, D-53113 Bonn, Germany 3 Geologisch-Palaontologisches¨ Institut und Museum der Universitat¨ Hamburg, Bundesstrasse 55, D-20146 Hamburg, Germany (Accepted 24 June 2004) Abstract A new genus and species of gecko from the Lower Eocene of north-western Russia is described from a superbly preserved specimen in Baltic amber. It is the oldest gekkonid lizard to be represented by more than fragmentary skeletal remains. The digits of the specimen are mostly intact and reveal a unique combination of characters not seen in any living form. Expanded sub-digital scansors on the toes, however, are essentially similar to those of modern climbing geckos and verify the existence of a complex adhesive system 20–30 million years earlier than supported by previously discovered fossil geckos. Key words: Yantarogekko, Gekkonidae, Early Eocene, amber, sub-digital scansors INTRODUCTION species from the Paleocene of Brazil (Estes, 1983b). Thereafter a greater diversity of gekkotans is reflected The fossil record of autarchoglossan lizards extends back in the fossil record, particularly that of Europe. Eocene at least to the mid-Jurassic (Evans, 1993, 1998a) and aut- material includes Rhodanogekko vireti Hoffstetter, 1946, archoglossans, particularly scincomorphs, are generally Cadurcogekko piveteaui Hoffstetter, 1946, and unidenti- well represented throughout the Late Jurassic and into fied material (Rage, 1978; Auge,´ 1990b), all from France.