Boremys (Testudines, Baenidae) from the Latest Cretaceous and Early
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A New Xinjiangchelyid Turtle from the Middle Jurassic of Xinjiang, China and the Evolution of the Basipterygoid Process in Mesozoic Turtles Rabi Et Al
A new xinjiangchelyid turtle from the Middle Jurassic of Xinjiang, China and the evolution of the basipterygoid process in Mesozoic turtles Rabi et al. Rabi et al. BMC Evolutionary Biology 2013, 13:203 http://www.biomedcentral.com/1471-2148/13/203 Rabi et al. BMC Evolutionary Biology 2013, 13:203 http://www.biomedcentral.com/1471-2148/13/203 RESEARCH ARTICLE Open Access A new xinjiangchelyid turtle from the Middle Jurassic of Xinjiang, China and the evolution of the basipterygoid process in Mesozoic turtles Márton Rabi1,2*, Chang-Fu Zhou3, Oliver Wings4, Sun Ge3 and Walter G Joyce1,5 Abstract Background: Most turtles from the Middle and Late Jurassic of Asia are referred to the newly defined clade Xinjiangchelyidae, a group of mostly shell-based, generalized, small to mid-sized aquatic froms that are widely considered to represent the stem lineage of Cryptodira. Xinjiangchelyids provide us with great insights into the plesiomorphic anatomy of crown-cryptodires, the most diverse group of living turtles, and they are particularly relevant for understanding the origin and early divergence of the primary clades of extant turtles. Results: Exceptionally complete new xinjiangchelyid material from the ?Qigu Formation of the Turpan Basin (Xinjiang Autonomous Province, China) provides new insights into the anatomy of this group and is assigned to Xinjiangchelys wusu n. sp. A phylogenetic analysis places Xinjiangchelys wusu n. sp. in a monophyletic polytomy with other xinjiangchelyids, including Xinjiangchelys junggarensis, X. radiplicatoides, X. levensis and X. latiens. However, the analysis supports the unorthodox, though tentative placement of xinjiangchelyids and sinemydids outside of crown-group Testudines. A particularly interesting new observation is that the skull of this xinjiangchelyid retains such primitive features as a reduced interpterygoid vacuity and basipterygoid processes. -
A Phylogenomic Analysis of Turtles ⇑ Nicholas G
Molecular Phylogenetics and Evolution 83 (2015) 250–257 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev A phylogenomic analysis of turtles ⇑ Nicholas G. Crawford a,b,1, James F. Parham c, ,1, Anna B. Sellas a, Brant C. Faircloth d, Travis C. Glenn e, Theodore J. Papenfuss f, James B. Henderson a, Madison H. Hansen a,g, W. Brian Simison a a Center for Comparative Genomics, California Academy of Sciences, 55 Music Concourse Drive, San Francisco, CA 94118, USA b Department of Genetics, University of Pennsylvania, Philadelphia, PA 19104, USA c John D. Cooper Archaeological and Paleontological Center, Department of Geological Sciences, California State University, Fullerton, CA 92834, USA d Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA e Department of Environmental Health Science, University of Georgia, Athens, GA 30602, USA f Museum of Vertebrate Zoology, University of California, Berkeley, CA 94720, USA g Mathematical and Computational Biology Department, Harvey Mudd College, 301 Platt Boulevard, Claremont, CA 9171, USA article info abstract Article history: Molecular analyses of turtle relationships have overturned prevailing morphological hypotheses and Received 11 July 2014 prompted the development of a new taxonomy. Here we provide the first genome-scale analysis of turtle Revised 16 October 2014 phylogeny. We sequenced 2381 ultraconserved element (UCE) loci representing a total of 1,718,154 bp of Accepted 28 October 2014 aligned sequence. Our sampling includes 32 turtle taxa representing all 14 recognized turtle families and Available online 4 November 2014 an additional six outgroups. Maximum likelihood, Bayesian, and species tree methods produce a single resolved phylogeny. -
Membros Da Comissão Julgadora Da Dissertação
UNIVERSIDADE DE SÃO PAULO FACULDADE DE FILOSOFIA, CIÊNCIAS E LETRAS DE RIBEIRÃO PRETO PROGRAMA DE PÓS-GRADUAÇÃO EM BIOLOGIA COMPARADA Evolution of the skull shape in extinct and extant turtles Evolução da forma do crânio em tartarugas extintas e viventes Guilherme Hermanson Souza Dissertação apresentada à Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo, como parte das exigências para obtenção do título de Mestre em Ciências, obtido no Programa de Pós- Graduação em Biologia Comparada Ribeirão Preto - SP 2021 UNIVERSIDADE DE SÃO PAULO FACULDADE DE FILOSOFIA, CIÊNCIAS E LETRAS DE RIBEIRÃO PRETO PROGRAMA DE PÓS-GRADUAÇÃO EM BIOLOGIA COMPARADA Evolution of the skull shape in extinct and extant turtles Evolução da forma do crânio em tartarugas extintas e viventes Guilherme Hermanson Souza Dissertação apresentada à Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo, como parte das exigências para obtenção do título de Mestre em Ciências, obtido no Programa de Pós- Graduação em Biologia Comparada. Orientador: Prof. Dr. Max Cardoso Langer Ribeirão Preto - SP 2021 Autorizo a reprodução e divulgação total ou parcial deste trabalho, por qualquer meio convencional ou eletrônico, para fins de estudo e pesquisa, desde que citada a fonte. I authorise the reproduction and total or partial disclosure of this work, via any conventional or electronic medium, for aims of study and research, with the condition that the source is cited. FICHA CATALOGRÁFICA Hermanson, Guilherme Evolution of the skull shape in extinct and extant turtles, 2021. 132 páginas. Dissertação de Mestrado, apresentada à Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto/USP – Área de concentração: Biologia Comparada. -
Comparative Bone Histology of the Turtle Shell (Carapace and Plastron)
Comparative bone histology of the turtle shell (carapace and plastron): implications for turtle systematics, functional morphology and turtle origins Dissertation zur Erlangung des Doktorgrades (Dr. rer. nat.) der Mathematisch-Naturwissenschaftlichen Fakultät der Rheinischen Friedrich-Wilhelms-Universität zu Bonn Vorgelegt von Dipl. Geol. Torsten Michael Scheyer aus Mannheim-Neckarau Bonn, 2007 Angefertigt mit Genehmigung der Mathematisch-Naturwissenschaftlichen Fakultät der Rheinischen Friedrich-Wilhelms-Universität Bonn 1 Referent: PD Dr. P. Martin Sander 2 Referent: Prof. Dr. Thomas Martin Tag der Promotion: 14. August 2007 Diese Dissertation ist 2007 auf dem Hochschulschriftenserver der ULB Bonn http://hss.ulb.uni-bonn.de/diss_online elektronisch publiziert. Rheinische Friedrich-Wilhelms-Universität Bonn, Januar 2007 Institut für Paläontologie Nussallee 8 53115 Bonn Dipl.-Geol. Torsten M. Scheyer Erklärung Hiermit erkläre ich an Eides statt, dass ich für meine Promotion keine anderen als die angegebenen Hilfsmittel benutzt habe, und dass die inhaltlich und wörtlich aus anderen Werken entnommenen Stellen und Zitate als solche gekennzeichnet sind. Torsten Scheyer Zusammenfassung—Die Knochenhistologie von Schildkrötenpanzern liefert wertvolle Ergebnisse zur Osteoderm- und Panzergenese, zur Rekonstruktion von fossilen Weichgeweben, zu phylogenetischen Hypothesen und zu funktionellen Aspekten des Schildkrötenpanzers, wobei Carapax und das Plastron generell ähnliche Ergebnisse zeigen. Neben intrinsischen, physiologischen Faktoren wird die -
Phylogenetic Relationships Among Extinct and Extant Turtles: the Position of Pleurodira and the Effects of the Fossils on Rooting Crown-Group Turtles
Contributions to Zoology, 79 (3) 93-106 (2010) Phylogenetic relationships among extinct and extant turtles: the position of Pleurodira and the effects of the fossils on rooting crown-group turtles Juliana Sterli1, 2 1 CONICET - Museo Paleontológico Egidio Feruglio, Av. Fontana 140, 9100 Trelew, Chubut, Argentina 2 E-mail: [email protected] Key words: molecules, morphology, phylogeny, Testudinata, Testudines Abstract Taxonomic nomenclature ........................................................ 94 Taxonomic sampling ................................................................ 94 The origin and evolution of the crown-group of turtles (Crypto- Character sampling ................................................................. 95 dira + Pleurodira) is one of the most interesting topics in turtle Phylogenetic analyses ............................................................. 95 evolution, second perhaps only to the phylogenetic position of Results ............................................................................................... 97 turtles among amniotes. The present contribution focuses on Morphological analysis with extinct taxa .......................... 97 the former problem, exploring the phylogenetic relationships Molecular analyses .................................................................. 97 of extant and extinct turtles based on the most comprehensive Morphological and molecular analysis excluding phylogenetic dataset of morphological and molecular data ana- extinct taxa ................................................................................ -
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 -
A NEW LATE JURASSIC TURTLE from SPAIN: PHYLOGENETIC IMPLICATIONS, TAPHONOMY and PALAEOECOLOGY by BEN J
[Palaeontology, Vol. 54, Part 6, 2011, pp. 1393–1414] A NEW LATE JURASSIC TURTLE FROM SPAIN: PHYLOGENETIC IMPLICATIONS, TAPHONOMY AND PALAEOECOLOGY by BEN J. SLATER1, MATI´AS REOLID2, REMMERT SCHOUTEN3 and MICHAEL J. BENTON3 1School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; e-mail: [email protected] 2Departmento de Geologı´a, Universidad de Jae´n, Campus Las Lagunillas sn, 23071 Jae´n, Spain; e-mail: [email protected] 3School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen’s Road, Bristol BS8 1RJ, UK; e-mails: [email protected], [email protected] Typescript received 26 October 2010; accepted in revised form 27 May 2011 Abstract: The Jurassic was an important period in the evo- of the new taxon is hard to resolve, and it might be either a lution of Testudinata and encompasses the origin of many paracryptodire or a basal testudine, but it is distinct from clades, and this is especially true of Jurassic turtles from Wes- Plesiochelys. A complex taphonomic history is shown by a tern Europe. A new genus and species of Late Jurassic turtle, range of overlying grazing traces and bioerosion on the cara- Hispaniachelys prebetica gen. et sp. nov. from the upper Ox- pace. The carapace was subsequently overturned and buried fordian of the Prebetic (Southern Spain), is described on the ventrally up, terminating grazing activity, and was then bored basis of postcranial material. The specimen is the only known by sponges before final burial. Scanning electron microscopy tetrapod from the Mesozoic of the Prebetic and the oldest reveals phosphatic microspheroids associated with bacterial turtle from southern Europe. -
Reinterpretation of the Spanish Late Jurassic “Hispaniachelys Prebetica” As an Indeterminate Plesiochelyid Turtle
Reinterpretation of the Spanish Late Jurassic “Hispaniachelys prebetica” as an indeterminate plesiochelyid turtle ADÁN PÉREZ-GARCÍA Pérez-García, A. 2014. Reinterpretation of the Spanish Late Jurassic “Hispaniachelys prebetica” as an indeterminate plesiochelyid turtle. Acta Palaeontologica Polonica 59 (4): 879–885. A partial postcranial skeleton (carapace, plastron, and other poorly preserved elements) of a turtle, from the late Ox- fordian of the Betic Range of Spain, has recently been assigned to a new taxon, Hispaniachelys prebetica. This is one of the few European turtle taxa reported from pre-Kimmeridgian levels, and the oldest turtle so far known from southern Europe. The character combination identified in that taxon (including the presence of cleithra, and single cervical scale) did not allow its assignment to Plesiochelyidae, a group of turtles very abundant and diverse in the Late Jurassic of Eu- rope. The revision of the single specimen assigned to this taxon led to the reinterpretation of some of its elements, being reassigned to Plesiochelyidae. This study confirms the presence of Plesiochelyidae in the Oxfordian. However, because the Spanish taxon does not present a unique combination of characters, it is proposed as a nomen dubium. Key words: Testudines, Plesiochelyidae, Hispaniachelys prebetica, Oxfordian, Jurassic, Spain. Adán Pérez-García [[email protected]], Centro de Geologia, Faculdade de Ciências da Universidade de Lisboa (FCUL), Edificio C6, Campo Grande, 1749-016 Lisbon, Portugal; Grupo de Biología Evolutiva, Facultad de Ciencias, UNED, C/ Senda del Rey, 9, 28040 Madrid, Spain. Received 9 October 2012, accepted 29 May 2013, available online 5 June 2013. Copyright © 2014 A. Pérez-García. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. -
Supplementary Figure 1 Subsampled Global Non-Marine Chelonian
Title Climate-mediated diversification of turtles in the Cretaceous Authors Nicholson, DB; Holroyd, PA; Benson, RBJ; Barrett, PM Date Submitted 2017-02-23 Supplementary Figure 1 subsampled global continental turtle genus diversity Quorum level 0.6 0.4 0.5 0.3 subsampled genus diversity genus subsampled 0.0 0.4 0.8 1.2 250 200 150 100 50 0 age / Ma Subsampled global non‐marine chelonian genus diversity Data shown after log transformation, at four quorum levels. Supplementary Figure 2 subsampled global marine turtle genus diversity Quorum level 0.6 0.4 0.5 0.3 subsampled genus diversity genus subsampled 0.0 0.2 0.4 0.6 0.8 250 200 150 100 50 0 age / Ma Subsampled global marine chelonian genus diversity Data shown after log transformation, at four quorum levels. Supplementary Figure 3 subsampled North American continental turtle genus diversity Quorum level 0.6 0.4 0.5 0.3 subsampled genus diversity genus subsampled 0123456 250 200 150 100 age / Ma Subsampled North American non‐marine chelonian genus diversity Data shown at four quorum levels. Supplementary Figure 4 subsampled European continental turtle genus diversity Quorum level 0.6 0.4 0.5 0.3 subsampled genus diversity 02468 250 200 150 100 age / Ma Subsampled European non‐marine chelonian genus diversity Data shown at four quorum levels. Supplementary Figure 5 subsampled Asian continental turtle genus diversity Quorum level 0.6 0.4 0.5 0.3 subsampled genus diversity genus subsampled 02468 250 200 150 100 age / Ma Subsampled Asian non‐marine chelonian genus diversity Data shown at four quorum levels. -
Dependent Sex Determination at The
Downloaded from rsbl.royalsocietypublishing.org on October 27, 2010 Biol. Lett. Indian plate peaked slightly before the K–Pg boundary doi:10.1098/rsbl.2010.0882 [3]. It has been widely suggested that one or both Published online events were responsible for the mass extinction at the Palaeontology K–Pg boundary and that each had profound effects on global climate. The impact vapourized large quantities of evaporite minerals, and the resulting sulphate aerosols Unexpected resilience of probably seeded clouds that reflected solar radiation [4]. The volcanic eruptions, which formed the Deccan Traps species with temperature- of India, released large quantities of CO2 into the atmos- phere and may have initiated global warming [5]. Those dependent sex species that had temperature-dependent sex determi- determination at the nation (TSD) are expected to have been negatively impacted by these climate changes [6,7]. Cretaceous–Palaeogene In TSD, the sex of the embryo is determined by the incubation temperature of the eggs. Incubation at the boundary pivotal temperature(s) yields a 1 : 1 sex ratio, small temp- erature deviations yield an unbalanced sex ratio and 1, 2 Sherman Silber *, Jonathan H. Geisler larger deviations yield single-sex clutches [8]. In genoty- and Minjin Bolortsetseg3 pic sex determination (GSD), a sex-determining gene 1Infertility Center of Saint Louis, St Luke’s Hospital, Saint Louis, activates a downstream cascade of other genes that are MO 63017, USA responsible for testis or ovarian development. The 2New York College of Osteopathic Medicine, Old Westbury, NY 11568, USA specific chromosomes and genes in GSD have evolved 3Institute for the Study of Mongolian Dinosaurs, Ulaanbaatar 14201, independently in numerous lineages, suggesting that it Mongolia has adaptive benefits [7]. -
A New Species of the Large-Headed Coastal Marine Turtle Solnhofia
A new species of the large-headed coastal marine turtle Solnhofia (Testudinata, Thalassochelydia) from the Late Jurassic of NW Switzerland Jérémy Anquetin1,2 and Christian Püntener3,4 1 JURASSICA Museum, Porrentruy, Switzerland 2 Department of Geosciences, University of Fribourg, Fribourg, Switzerland 3 Naturmuseum Solothurn, Solothurn, Switzerland 4 Section d’archéologie et paléontologie, Office de la culture, République et Canton du Jura, Porrentruy, Switzerland ABSTRACT Background: The large-headed turtle Solnhofia parsonsi is known by a handful of specimens from the Late Jurassic of Germany and Switzerland (maybe also France). Solnhofia parsonsi is traditionally regarded as a “eurysternid” Thalassochelydia, a group of small to medium sized, mostly lagoonal or marginal turtles found almost exclusively in the Late Jurassic of Europe. More recently, Solnhofia parsonsi has been proposed to be a close relative of Sandownidae, an enigmatic group of Cretaceous to Paleogene turtles characterized by a derived cranial anatomy and a wider geographical distribution. Sandownids may therefore have evolved from thalassochelydian ancestors such as Solnhofia parsonsi. Methods: We herein describe new material of Solnhofia from the Kimmeridgian (Late Jurassic) of Porrentruy, NW Switzerland. The bulk of the material consists of an association of a cranium and over 180 shell bones found together in a block of marly limestone. A second cranium and a mandible from slightly younger, but nearby localities are also described. Results: We refer the new material to -
Paleogene Chelonians from Maryland and Virginia
Peer Reviewed Title: Paleogene chelonians from Maryland and Virginia Journal Issue: PaleoBios, 31(1) Author: Weems, Robert E., Paleo Quest, Gainesville, Virginia Publication Date: 2014 Publication Info: PaleoBios Permalink: http://escholarship.org/uc/item/7253p3tf Acknowledgements: I wish to thank Mark Bennett, Dave Bohaska, Bill Counterman, Mike Folmer, George Fonger, Tom Gibson, Gary Grimsley, Melville Hurd, Ron Ison, Jason Osborne, Peter Kranz, Michael Smigaj, and Bob Wiest for donating their important finds of turtle material to the Calvert Marine Museum and the National Museum of Natural History collections, thereby making this material available for study. Without their tireless collecting efforts, this paper would not have been possible. Mel Gulotta made his exceptionally complete skull of available to Billy Palmer, who kindly volunteered to make an excellent cast of it for accession to the Calvert Marine Museum; to both I am grateful. Ned Gilmore (Academy of Natural Sciences, Philadelphia) provided very helpful insights on the museum records and the matrix associated with the type skull of in the ANSP collections, confirming that the specimen came from the Vincentown Formation. I thank James F. Parham and J. Howard Hutchison for their thorough and insightful reviews of this paper, and additionally I thank J. Howard Hutchison for pointing out to me the carettochelyid affinities of the turtle material from the Piney Point Formation. Last but certainly not least, I wish to express my gratitude to editors Mark Goodwin and Diane M.