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2 edition of taxonomic revision of the Jurassic turtles, Portlandemys and Plesiochelys found in the catalog.

taxonomic revision of the Jurassic turtles, Portlandemys and Plesiochelys

Eugene S. Gaffney

taxonomic revision of the Jurassic turtles, Portlandemys and Plesiochelys

by Eugene S. Gaffney

  • 76 Want to read
  • 34 Currently reading

Published by American Museum of Natural History in New York .
Written in English

    Places:
  • Europe.
    • Subjects:
    • Portlandemys.,
    • Plesiochelys.,
    • Paleontology -- Jurassic.,
    • Paleontology -- Europe.

    • Edition Notes

      StatementEugene S. Gaffney.
      SeriesAmerican Museum novitates ; no. 2574
      Classifications
      LC ClassificationsQL1 .A436 no. 2574, QE862.C5 .A436 no. 2574
      The Physical Object
      Pagination19 p. :
      Number of Pages19
      ID Numbers
      Open LibraryOL5247123M
      LC Control Number75319249

      "A theory of relationships is presented in which the Jurassic turtle genera Portlandemys and Plesiochelys are hypothesized as members of the monophyletic group Chelonioidea based on the possession of the following shared derived characters: 1) dorsum sellae high and separated from sella turcica and foramen anterius canalis carotici interni by prominent bone surface that usually has a . “This volume’s breadth of time, geography, and taxonomic coverage makes it a major contribution to the field and a ‘must have’ for all vertebrate paleontologists.”, James F. Parham, California State University, CA, USA “A comprehensive and sweeping overview of .

      Today, we publish our second study on the turtle material from the A16 highway [4] [].In this paper, we primarily describe a new plesiochelyid species (Portlandemys gracilis) from the Kimmeridgian of Porrentruy known by a partial cranium and complete mandible (FIG. 1).Based notably on the basicranium, we consider this species to be closely related to Portlandemys mcdowelli from . The bony elements of turtles are very abundant throughout the succession recorded in Galve, but the relatively limited state of knowledge about continental turtle fauna from the European Lower Cretaceous has hindered their analysis (Lapparent de Broin ).In addition, several of the taxa identified in this period (e.g. ‘Trachyaspis turbulensis ’ Bergounioux, , ‘Plesiochelys.

        American Museum Novitates, GAFFNEY E.S. b - A Taxonomic Revision of the Ju- rassic Turtles Portlandemys and Plesiochelys. Ame- rican Museum Novitates, GAFFNEY E.S. - Cranial Morphology of the Euro- pean Jurassic Turtles Portlandemys and Plesioche- lys. A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum Novitates 19 pp. Gaffney, E. S. Solnhofia parsonsi, a new cryptodiran turtle from the Late Jurassic of Europe. American Museum Novitates 25 pp. Gaffney, E. S. A phylogeny and classification of the higher categories of turtles.


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Taxonomic revision of the Jurassic turtles, Portlandemys and Plesiochelys by Eugene S. Gaffney Download PDF EPUB FB2

"A taxonomic revision of the Jurassic chelonian family Plesiochelyidae recognizes two valid genera: Plesiochelys Rütimeyer and Portlandemys, new. The genera Craspedochelys Rütimeyer and Stegochelys Lydekker are junior synonyms of Plesiochelys, whereas Plesiochelys jaccardi, P.

solodurensis, and P. sanctaeverenae are synonymized with. Plesiochelys is a genus of late Jurassic European and Asian turtle. The type species is Plesiochelys etalloni.

A recent study placed Plesiochelys as an Angolachelonia and outside Testudines. ReferencesClass: Reptilia. Gaffney ES () A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. Am Museum Nov 1– Gaffney ES () Cranial morphology of the European Jurassic turtles Portlandemys and Plesiochelys.

Bull Am Museum Nat Hist – Sterli J, Müller J, Anquetin J, Hilger A Cited by: However, the taxonomy of plesiochelyid turtles is rather confused. Over the years, many taxa have been synonymized with Plesiochelys etalloni, one of the first described species.

However, the holotype of P. etalloni (and only specimen known from Lect, the type locality) was lost for more than by: ATaxonomic Revision of the Jurassic Turtles Portlandemys and Plesiochelys EUGENE S.

GAFFNEY' ABSTRACT A taxonomic revision of the Jurassic chelo-nian family Plesiochelyidae recognizes two valid genera: Plesiochelys RiutimeyerandPortlandemys, new.

The genera Craspedochelys Riutimeyer and Stegochelys Lydekker are junior synonyms of Plesiochelys. Citation: Carabajal AP, Sterli J, Müller J, Hilger A () Neuroanatomy of the Marine Jurassic Turtle Plesiochelys etalloni (Testudinata, Plesiochelyidae).

PLoS ONE 8(7): e doi   Plesiochelyidae are a major component of Late Jurassic shallow marine environments throughout Europe. However, the taxonomy of plesiochelyid turtles is rather confused. Over the years, many taxa have been synonymized with Plesiochelys etalloni, one of the first described species.

However, the holotype of P. etalloni (and only specimen known from Lect, the type locality) was lost. Background During the Late Jurassic, several groups of eucryptodiran turtles inhabited the shallow epicontinental seas of Western Europe.

Plesiochelyidae are an important part of this first radiation of crown-group turtles into coastal marine ecosystems. Fossils of Plesiochelyidae occur in many European localities, and are especially abundant in the Kimmeridgian layers of the Swiss Jura. Here, we describe the basicranium of two species of Mesozoic turtles from Europe, Plesiochelys etalloni and Pleurosternon bullockii A taxonomic revision of the Jurassic turtles Portlandemys and Cranial morphology of the European Jurassic turtles Portlandemys and Plesiochelys.

Bulletin of the American Museum of. A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum Novitates Parent taxon: Plesiochelyidae according to J. Anquetin et al. A relatively high diversity of basal eucryptodirans is recognized in the British Late Jurassic record, where several taxa are defined (Plesiochelys planiceps, Portlandemys mcdowelli Gaffney, a, Tropidemys blakii (Seeley, ), Tholemys passmorei Andrews,and Enaliochelys chelonia; Fig.

1a–e). A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum novitates ; no. By Eugene S. Gaffney. Publisher: OAI identifier: oai::item/ Provided by: Biodiversity Heritage Library OAI Repository.

Download PDF. Jurassic turtles. By Eugene S. Gaffney. Abstract. 19 p.: ill. ; 26 es bibliographical references (p. )."A taxonomic revision of the Jurassic chelonian family Plesiochelyidae recognizes two valid genera: Plesiochelys Rütimeyer and Portlandemys, new.

The genera Craspedochelys Rütimeyer and Stegochelys Lydekker are junior. A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys. American Museum Novitates Parent taxon: Cryptodira according to J. Mallon and D. Brinkman A global taxonomic revision of these turtles is long overdue.

We are aware that the present study is only regional in scope and that some adjustments may be necessary in years to come following the revision of Late Jurassic turtles from other parts of Europe, notably in. Methodology/Principal Findings.

In the present study, we describe a cranium and a mandible from the Kimmeridgian of Porrentruy (Switzerland), which we refer to a new species, Portlandemys gracilis n. This new taxon differs from Portlandemys mcdowelli in several aspects of the cranium and mandible, notably in being generally more gracile, but the two species share a narrow skull, a more.

Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link). Part of the Vertebrate Paleobiology and Paleoanthropology book series (VERT) Abstract Gaffney, E. (b). A taxonomic revision of the Jurassic turtles Portlandemys and Plesiochelys.

American E. (a). Cranial morphology of the European Jurassic turtles Portlandemys and Plesiochelys. Bulletin of the American Museum of Natural. This remarkable configuration is known only in a group of Late Jurassic turtles (Plesiochelys etalloni, Plesiochelys planiceps, Portlandemys mcdowelli and Portlandemys gracilis) traditionally referred to the Plesiochelyidae and in Pan-Chelonioidea Joyce et al., which appear much later during the Early Cretaceous [13,34].

The type specimens of the Jurassic turtles from the Sichuan Basin (China) previously referred to plesiochelyid Plesiochelys are revised, which confirm that they belong to the family Xinjiangchelyidae. The study of a large number of additional shell material shows, as the dominant group, the Xinjiangchelyidae were greatly diversified in the Late Jurassic of the Sichuan Basin.

lyid taxa (Portlandemys gracilis, Plesiochelys planiceps, and Tropidemys langii Rütimeyer, [ 24 ]). Portlandemys gracilis was scored based on the material described herein.A New Species of Xinjiangchelyid (Testudines: Cryptodira: Xinjiangchelyidae) from the Cretaceous of Southern India.A taxonomic revision of the Jurassic turtles Portlan- it could correspond to Plesiochelys or to a taxon closely related to it (considering its relatively long shell, long plastron lobes.