Basal Turtles Shell Bone Histology Indicates Terrestrial Palaeoecology Of
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The Endoskeletal Origin of the Turtle Carapace
ARTICLE Received 7 Dec 2012 | Accepted 3 Jun 2013 | Published 9 Jul 2013 DOI: 10.1038/ncomms3107 OPEN The endoskeletal origin of the turtle carapace Tatsuya Hirasawa1, Hiroshi Nagashima2 & Shigeru Kuratani1 The turtle body plan, with its solid shell, deviates radically from those of other tetrapods. The dorsal part of the turtle shell, or the carapace, consists mainly of costal and neural bony plates, which are continuous with the underlying thoracic ribs and vertebrae, respectively. Because of their superficial position, the evolutionary origins of these costo-neural elements have long remained elusive. Here we show, through comparative morphological and embryological analyses, that the major part of the carapace is derived purely from endos- keletal ribs. We examine turtle embryos and find that the costal and neural plates develop not within the dermis, but within deeper connective tissue where the rib and intercostal muscle anlagen develop. We also examine the fossils of an outgroup of turtles to confirm that the structure equivalent to the turtle carapace developed independently of the true osteoderm. Our results highlight the hitherto unravelled evolutionary course of the turtle shell. 1 Laboratory for Evolutionary Morphology, RIKEN Center for Developmental Biology, Kobe 650-0047, Japan. 2 Division of Gross Anatomy and Morphogenesis, Department of Regenerative and Transplant Medicine, Niigata University, Niigata 951-8510, Japan. Correspondence and requests for materials should be addressed to T.H. (email: [email protected]). NATURE COMMUNICATIONS | 4:2107 | DOI: 10.1038/ncomms3107 | www.nature.com/naturecommunications 1 & 2013 Macmillan Publishers Limited. All rights reserved. ARTICLE NATURE COMMUNICATIONS | DOI: 10.1038/ncomms3107 wo types of skeletal systems are recognized in vertebrates, exoskeletal components into the costal and neural plates (Fig. -
Universidad Nacional Del Comahue Centro Regional Universitario Bariloche
Universidad Nacional del Comahue Centro Regional Universitario Bariloche Título de la Tesis Microanatomía y osteohistología del caparazón de los Testudinata del Mesozoico y Cenozoico de Argentina: Aspectos sistemáticos y paleoecológicos implicados Trabajo de Tesis para optar al Título de Doctor en Biología Tesista: Lic. en Ciencias Biológicas Juan Marcos Jannello Director: Dr. Ignacio A. Cerda Co-director: Dr. Marcelo S. de la Fuente 2018 Tesis Doctoral UNCo J. Marcos Jannello 2018 Resumen Las inusuales estructuras óseas observadas entre los vertebrados, como el cuello largo de la jirafa o el cráneo en forma de T del tiburón martillo, han interesado a los científicos desde hace mucho tiempo. Uno de estos casos es el clado Testudinata el cual representa uno de los grupos más fascinantes y enigmáticos conocidos entre de los amniotas. Su inconfundible plan corporal, que ha persistido desde el Triásico tardío hasta la actualidad, se caracteriza por la presencia del caparazón, el cual encierra a las cinturas, tanto pectoral como pélvica, dentro de la caja torácica desarrollada. Esta estructura les ha permitido a las tortugas adaptarse con éxito a diversos ambientes (por ejemplo, terrestres, acuáticos continentales, marinos costeros e incluso marinos pelágicos). Su capacidad para habitar diferentes nichos ecológicos, su importante diversidad taxonómica y su plan corporal particular hacen de los Testudinata un modelo de estudio muy atrayente dentro de los vertebrados. Una disciplina que ha demostrado ser una herramienta muy importante para abordar varios temas relacionados al caparazón de las tortugas, es la paleohistología. Esta disciplina se ha involucrado en temas diversos tales como el origen del caparazón, el origen del desarrollo y mantenimiento de la ornamentación, la paleoecología y la sistemática. -
Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships
438 Article 438 by Saswati Bandyopadhyay1* and Sanghamitra Ray2 Gondwana Vertebrate Faunas of India: Their Diversity and Intercontinental Relationships 1Geological Studies Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India; email: [email protected] 2Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721302, India; email: [email protected] *Corresponding author (Received : 23/12/2018; Revised accepted : 11/09/2019) https://doi.org/10.18814/epiiugs/2020/020028 The twelve Gondwanan stratigraphic horizons of many extant lineages, producing highly diverse terrestrial vertebrates India have yielded varied vertebrate fossils. The oldest in the vacant niches created throughout the world due to the end- Permian extinction event. Diapsids diversified rapidly by the Middle fossil record is the Endothiodon-dominated multitaxic Triassic in to many communities of continental tetrapods, whereas Kundaram fauna, which correlates the Kundaram the non-mammalian synapsids became a minor components for the Formation with several other coeval Late Permian remainder of the Mesozoic Era. The Gondwana basins of peninsular horizons of South Africa, Zambia, Tanzania, India (Fig. 1A) aptly exemplify the diverse vertebrate faunas found Mozambique, Malawi, Madagascar and Brazil. The from the Late Palaeozoic and Mesozoic. During the last few decades much emphasis was given on explorations and excavations of Permian-Triassic transition in India is marked by vertebrate fossils in these basins which have yielded many new fossil distinct taxonomic shift and faunal characteristics and vertebrates, significant both in numbers and diversity of genera, and represented by small-sized holdover fauna of the providing information on their taphonomy, taxonomy, phylogeny, Early Triassic Panchet and Kamthi fauna. -
Evolutionary Origin of the Turtle Shell
Current Biology 23, 1113–1119, June 17, 2013 ª2013 Elsevier Ltd All rights reserved http://dx.doi.org/10.1016/j.cub.2013.05.003 Report Evolutionary Origin of the Turtle Shell Tyler R. Lyson,1,2,3,* Gabe S. Bever,4,5 Torsten M. Scheyer,6 debated throughout the 20th and early 21st centuries (see Allison Y. Hsiang,1 and Jacques A. Gauthier1,3 [16]) with support falling largely along disciplinary lines [3–9, 1Department of Geology and Geophysics, Yale University, 17–25]. Paleontological explanations relied heavily on the 210 Whitney Avenue, New Haven, CT 06511, USA composite model [19–25], but their efficacy was hampered 2Department of Vertebrate Zoology, National Museum of by the large morphological gap separating the earliest, fully Natural History, Smithsonian Institution, Washington, shelled turtles (e.g., Proganochelys quenstedti [26]) from all DC 20560, USA other known groups. In contrast, developmental biologists 3Division of Vertebrate Paleontology, Yale Peabody Museum promoted the de novo model and viewed the lack of clear tran- of Natural History, New Haven, CT 06511, USA sitional fossils as support for a rapid evolution of the shell, 4New York Institute of Technology, College of Osteopathic perhaps coincident with the appearance of a bone morphoge- Medicine, Old Westbury, NY 11568, USA netic protein (BMP) developmental pathway critical to shell 5Division of Paleontology, American Museum of Natural construction in modern turtles [3–9, 27]. The lack of osteo- History, New York, NY 10024, USA derms in the recently discovered stem turtle Odontochelys 6Pala¨ ontologisches Institut und Museum, Universita¨ tZu¨ rich, semitestacea [2] strongly supports the de novo model of shell Karl-Schmid-Strasse 4, 8006 Zu¨rich, Switzerland origination and liberates the paleontological search for the even deeper history of the turtle stem from its previously self-imposed constraint of osteoderm-bearing forms. -
Chelonia Brongniart Green Sea Turtles
248.1 REPTILIA: TESTUDINES: CHELONIIDAE CHELONIA Catalogue of American Amphibians and Reptiles. The following skull characters are based on specimens of C. mydas (a representative series of skulls from C. depressa has yet HIRTH, HAROLDF. 1980. Chelonia. to be described). Tomium of the lower jaw is strongly serrated while that of the upper jaw possesses ridges on the inner surface; maxilla with vertical ribbing on inner surface; a blunt ridge on Chelonia Brongniart vomer and palatines at the anterior margin of the internal choa• Green sea turtles nae; mandibular symphysis short; the labial and lingual margins rise to points at the symphysis and the two points are connected Chelonia Brongniart, 1800:89. Type-species designated as Che• by a sharp symphysial ridge. lonia mydas Cuvier, 1832 (~Testudo mydas Linnaeus, 1758) by Fitzinger, 1843:30. • DESCRIPTIONS. General descriptions of varying degrees of Chelonias: Rafinesque, 1814:66. Emendation. completeness are in Smith (1931), Deraniyagala (1939), Bourret Caretta (in part): Merrem, 1820:19. (1941), Carr (1952), Loveridge and Williams (1957), and Cogger Chelona Burmeister, 1837:731. Type-species, Testudo mydas (1975) among others. For descriptions of various life stages of C. Linnaeus, 1758 by monotypy. depressa see PERTINENTLITERATURE.Hirth (1980) provides ref• Mydas Cocteau, 1838:22. Type-species, Testudo mydas Lin• erences to descriptions of the life stages of C. mydas. naeus, 1758 by tautonomy. Mydasea Gervais, 1843:457. Type-species, Testudo mydas Lin• • ILLUSTRATIONS. Black and white photos of C. depressa naeus, 1758 by tautonomy. hatchlings are found in Williams et al. (1967), Limpus (1971), and Euchelonia Tschudi, 1846:22. Type-species, Testudo mydas Lin• Bustard (1972). -
Antartic Peninsula and Tierra Del Fuego: 100
ANTARCTIC PENINSULA & TIERRA DEL FUEGO BALKEMA – Proceedings and Monographs in Engineering, Water and Earth Sciences Antarctic Peninsula & Tierra del Fuego: 100 years of Swedish-Argentine scientific cooperation at the end of the world Edited by Jorge Rabassa & María Laura Borla Proceedings of “Otto Nordenskjöld’s Antarctic Expedition of 1901–1903 and Swedish Scientists in Patagonia: A Symposium”, held in Buenos Aires, La Plata and Ushuaia, Argentina, March 2–7, 2003. LONDON / LEIDEN / NEW YORK / PHILADELPHIA / SINGAPORE Cover photo information: “The Otto Nordenskjöld’s Expedition to Antarctic Peninsula, 1901–1903. The wintering party in front of the hut on Snow Hill, Antarctica, 30th September 1902. From left to right: Bodman, Jonassen, Nordenskjöld, Ekelöf, Åkerlund and Sobral. Photo: G. Bodman. From the book: Otto Nordenskjöld & John Gunnar Andersson, et al., “Antarctica: or, Two Years amongst the Ice of the South Pole” (London: Hurst & Blackett., 1905)”. Taylor & Francis is an imprint of the Taylor & Francis Group, an informa business This edition published in the Taylor & Francis e-Library, 2007. “To purchase your own copy of this or any of Taylor & Francis or Routledge’s collection of thousands of eBooks please go to www.eBookstore.tandf.co.uk.” © 2007 Taylor & Francis Group plc, London, UK All rights reserved. No part of this publication or the information contained herein may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, by photocopying, recording or otherwise, without written prior permission from the publishers. Although all care is taken to ensure the integrity and quality of this publication and the information herein, no responsibility is assumed by the publishers nor the author for any damage to property or persons as a result of operation or use of this publication and/or the information contained herein. -
Miocene Leatherback Turtle Material of the Genus Psephophorus (Testudines: Dermochelyoidea) from the Gram Formation (Denmark)
ISSN: 0211-8327 Studia Palaeocheloniologica IV: pp. 205-216 MIOCENE LEATHERBACK TURTLE MATERIAL OF THE GENUS PSEPHOPHORUS (TESTUDINES: DERMOCHELYOIDEA) FROM THE GRAM FORMATION (DENMARK) [Tortugas de cuero miocénicas del género Psephophorus (Testudines: Dermochelyoidea) de la Formación Gram (Dinamarca)] Hans-Volker KARL 1,2, Bent E. K. LINDOW 3 & Thomas TÜT K EN 4 1 Thüringisches Landesamt für Denkmalpflege und Archäologie (TLDA). Humboldtstr. 11. D-99423, Weimar, Germany. Email: [email protected] 2c\o Geobiology, Center of Earth Sciences at the University of Göttingen. Goldschmidtstraße 3. DE-37077 Göttingen, Germany 3 Natural History Museum of Denmark. University of Copenhagen. Øster Voldgade 5-7. DK-1350 Copenhagen K, Denmark. Email: [email protected] 4 Emmy Noether-Gruppe “Knochengeochemie”. Steinmann Institut für Geologie, Mineralogie und Paläontologie. Arbeitsbereich Mineralogie-Petrologie. Rheinische Friedrich-Wilhelms-Universität Bonn. Poppelsdorfer Schloß. 53115 Bonn, Germany. (FECHA DE RECEPCIÓN: 2011-01-12) BIBLID [0211-8327 (2012) Vol. espec. 9; 205-216] ABSTRACT: Several specimens of fossil leatherback turtle from the upper Miocene (Tortonian) Gram Formation are described and illustrated scientifically for the first time. The specimens are all referred to the taxon Psephophorus polygonus and constitute the northernmost occurrence of this taxon in the geological record. Additionally, they indicate that leatherback turtles were a common constituent of the marine fauna of the Late Miocene North Sea Basin. Key words: Testudines, Psephophorus, Miocene, Gram Formation, Denmark. RESUMEN: Se describen y figuran por primera vez algunos ejemplares de tortugas de cuero fósiles del Mioceno superior (Tortoniense) de la Formación Gram, en © Ediciones Universidad de Salamanca Studia Palaeocheloniologica IV (Stud. Geol. Salmant. -
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 -
6° Congresso Nazionale Della Societas Herpetologica Italica
6° Congresso Nazionale della Societas Herpetologica Italica Riassunti A cura di: Marco A. Bologna, Massimo Capula, Giuseppe M. Carpaneto, Luca Luiselli, Carla Marangoni, Alberto Venchi Stilgrafica, Roma Retrocopertina Bianca, non stampata 6° Congresso Nazionale della Societas Herpetologica Italica Riassunti A cura di: Marco A. Bologna, Massimo Capula, Giuseppe M. Carpaneto, Luca Luiselli, Carla Marangoni, Alberto Venchi Stilgrafica, Roma LOGO UNIVERSITA’ ROMA TRE LOGO COMUNE DI ROMA LOGO DIPARTIMENTO DI BIOLOGIA LOGO MUSEO DI ZOOLOGIA UNIVERSITA’ ROMA TRE 6° Congresso Nazionale SOCIETAS HERPETOLOGICA ITALICA Roma, Museo Civico di Zoologia, 27 settembre - 1 ottobre 2006 Comitato organizzatore Marco A. Bologna, Massimo Capula, Giuseppe M. Carpaneto, Luca Luiselli, Carla Marangoni, Alberto Venchi Segreteria organizzativa Carla Marangoni, Pierluigi Bombi, Manuela D’Amen, Daniele Salvi, Leonardo Vignoli Comitato scientifico Fanco Andreone, Emilio Balletto, Marco A. Bologna, Massimo Capula, Giuseppe M. Carpaneto, Claudia Corti, Cristina Giacoma, Fabio M. Guarino, Benedetto Lanza, Sandro La Posta, Luca Luiselli, Carla Marangoni, Gaetano Odierna, Sebastiano Salvidio, Roberto Sindaco, Alberto Venchi Il presente volume va citato nel seguente modo / This volume should be cited as follows : Bologna M.A., Capula M., Carpaneto G.M., Luiselli L., Marangoni C., Venchi A. (eds.), 2006. Riassunti del 6 ° Congresso nazionale della Societas Herpetologica Italica (27 settembre – 1 ottobre 2006). Stilgrafica, Roma. Esempio di citazione di un singolo contributo / How to quote a single contribution : Carretero M. A. 2006. Iberian Podarcis : the state-of-the-art. In: Bologna M.A., Capula M., Carpaneto G.M., Luiselli L., Marangoni C., Venchi A. (eds.), Riassunti del 6 ° Congresso nazionale della Societas Herpetologica Italica (27 settembre – 1 ottobre 2006). -
Vertebrate Paleontology of the Cloverly Formation (Lower Cretaceous), II: Paleoecology Author(S): Matthew T
Vertebrate Paleontology of the Cloverly Formation (Lower Cretaceous), II: Paleoecology Author(s): Matthew T. Carrano , Matthew P. J. Oreska , and Rowan Lockwood Source: Journal of Vertebrate Paleontology, 36(2) Published By: The Society of Vertebrate Paleontology URL: http://www.bioone.org/doi/full/10.1080/02724634.2015.1071265 BioOne (www.bioone.org) is a nonprofit, online aggregation of core research in the biological, ecological, and environmental sciences. BioOne provides a sustainable online platform for over 170 journals and books published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Web site, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/page/terms_of_use. Usage of BioOne content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Journal of Vertebrate Paleontology e1071265 (12 pages) Ó by the Society of Vertebrate Paleontology DOI: 10.1080/02724634.2015.1071265 ARTICLE VERTEBRATE PALEONTOLOGY OF THE CLOVERLY FORMATION (LOWER CRETACEOUS), II: PALEOECOLOGY MATTHEW T. CARRANO,*,1 MATTHEW P. J. ORESKA,1,2 and ROWAN LOCKWOOD3 1Department of Paleobiology, Smithsonian Institution, P.O. Box 37012, MRC 121, Washington, DC 20013-7012, U.S.A., [email protected]; 2Department of Environmental Sciences, University of Virginia, Clark Hall, 291 McCormick Road, P.O. -
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 -
Icp Publications 2006-2021
ICP PUBLICATIONS 2006-2021 Last updated: 1 September 2021 In press and published online _______________________________________________________________________ SCI papers (indexed in JCR) 1. Abella, J., Martín-Perea, D. M., Valenciano, A., Hontecillas, D., Montoya, P., & Morales, J. (2021, published online). Coprolites in natural traps: direct evidence of bone eating carnivorans from the Late Miocene site of Batallones-3 (Madrid, Spain). Lethaia. https://doi.org/10.1111/let.12438 2. Agustí, J., Espresate, J., & Piñero, P. (2020, published in press). Dental variation in the endemic dormouse Hypnomys Bate 1918 and its implications for the palaeogeographic evolution of the Balearic Islands (Western Mediterranean) during the late Neogene-Quaternary. Historical Biology. https://doi.org/10.1080/08912963.2020.1852557 3. Alba, D. M., Robles, J. M., Valenciano, A., Abella, J., & Casanovas-Vilar, I. (2021, published online). A new species of Eomellivora from the latest Aragonian of Abocador de Can Mata (NE Iberian Peninsula). Historical Biology. https://doi.org/10.1080/08912963.2021.1943380 4. Arias-Martorell, J., Zeininger, A., & Kivell, T. L. (in press). Trabecular structure of the elbow reveals divergence in knuckle-walking biomechanical strategies of African apes. Evolution. 5. Bouchet, F., Urciuoli, A., Beaudet, A., Pina, M., Moyà-Solà, S., & Alba, D. M. (in press). Comparative anatomy of the carotid canal in the Miocene small-bodied catarrhine Pliobates cataloniae. Journal of Human Evolution. 6. Caballero, Ó., Montoya, P., Crespo, V. D., Morales, J., & Abella, J. (2020, published online). The autopodial skeleton of Paracamelus aguirrei (Morales 1984) (Tylopoda, Mammalia) from the late Miocene site of Venta del Moro (Valencia, Spain). Journal of Iberian Geology.