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2022-10
Volume 08, issue 03
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ISSN: 2274-0422

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MorphoMuseuM Volume 08, issue 03
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Original article : type specimen

A surface scan of the "Tübingen Steinkern", Holotype of Proganochelys quenstedtii (Testudinata), with some historical remarks.
Ingmar Werneburg Logo, Christina Kyriakouli Logo and Tomasz Szczygielski Logo
Published online: 08/08/2022

Keywords: Friedrich August Quenstedt; history of science; Holotype; steinkern; surface scan

https://doi.org/10.18563/journal.m3.168

References: 16

Cite this article: Ingmar Werneburg, Christina Kyriakouli and Tomasz Szczygielski, 2022. A surface scan of the "Tübingen Steinkern", Holotype of Proganochelys quenstedtii (Testudinata), with some historical remarks. MorphoMuseuM 8:e168. doi: 10.18563/journal.m3.168

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Abstract

Turtles are one of the most impressive vertebrates. Much of the body is either hidden in a shell or can be drawn into it. Turtles impress with their individual longevity and their often peaceful disposition. Also, with their resilience, they have survived all extinction events since their emergence in the Late Triassic. Today's diversity of shapes is impressive and ranges from the large and high domed Galapagos turtles to the hamster-sized flat pancake turtles. The holotype of one of the oldest fossil turtles, Proganochelys quenstedtii, is housed in the paleontological collection in Tübingen/Germany. Since its discovery some years before 1873, P. quenstedtii has represented the 'prototype' of the turtle and has had an eventful scientific history. It was found in Neuenhaus (Häfner-Neuhausen in Schönbuch forest), Baden-Württemberg, Germany, and stems from Löwenstein-Formation (Weißer Keupersandstein), Late Triassic. The current catalogue number is GPIT-PV-30000. The specimen is listed in the historical inventory “Tübinger Petrefaktenverzeichnis 1841 bis 1896, [folio 326v.]“, as “[catalogue number: PV]16549, Schildkröte Weiser Keupersandstein Hafnerhausen” [turtle from White Keuper Sandstone]. Another, more recent synonym is “GPIT/RE/9396”. The same specimen was presented as uncatalogued by Gaffney (1990). Here we provide a surface scan of the steinkern for easier access of this famous specimen to the scientific community.
  

Specimens and 3D Data

Proganochelys quenstedtii GPIT-PV-30000 View specimen

M3#967

This the surface model of the steinkern of the shell of Proganochelys quenstedtii.

Type: "3D_surfaces"

doi: 10.18563/m3.sf.967   state:published



Download 3D surface file


 

Published in Volume 08, issue 03 (2022)

References

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Baur G., 1887. Ueber den Ursprung der Extremitäten der Ichthyopterygia. Bericht über die XX. Versammlung des Oberrheinischen geologischen Vereins zu Metzingen in Württemberg, 14. April 1887, 17–20.

Baur G., 1888. Osteologische Notizen über Reptilien (Fortsetzung III). Zoologischer Anzeiger 285, 417–424

Cope E. D., 1873. On the Extinct Vertebrata of the Eocene of Wyoming, with Notes on the Geology. In: Vandeveer Hayden F. (Ed.), Annual Report of the United States Geological Survey of the Territories 6, p. 648.

Cope E. D., 1883. The Vertebrata of the Tertiary Formations of the West, Book I, Washington, p. 114.

Engelhardt W. v., ‎ Hölder H., 1977. Mineralogie, Geologie und Paläontologie an der Universität Tübingen. J.C.B. Mohr (Paul Siebeck), Tübingen.

Edinger T., 1929. Die fossilen Gehirne. Julius Springer, Berlin.

Fraas E., 1899. Proganochelys Quenstedtii BAUR (Psammochelys Keuperina QU.). Ein neuer Fund der Keuperschildkröte aus dem Stubensandstein. Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg 55, 401–424.

Gaffney E. S., 1990. The comparative osteology of the Triassic turtle Proganochelys. Bulletin of the American Museum of Natural History 194, 1-263.

Jaeger G. F., 1828. Über die fossile Reptilien, welche in Württemberg aufgefunden sind. Verlag der Metzler'schen Buchhandlung, Stuttgart. https://doi.org/10.5962/bhl.title.4689

Joyce W.G., 2017. A review of the fossil record of basal Mesozoic turtles. Bulletin of the Peabody Museum of Natural History 58(1), 65–113. https://doi.org/10.3374/014.058.0105

Plieninger T., 1846. Nachträgliche Bemerkungen zu dem Vortrage (S. 148 dieses Heftes) über ein neues Sauriergenus und die Einreihung der Saurier mit flachen, schneidenden Zähnen in eine Familie. Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg 2, 247-254.

Quenstedt F. A., 1889a. Das Mineralogische und Geognostische Institut. In: Universität Tübingen (Ed.), Die unter der Regierung seiner Majestät des Königs Karl an der Universität Tübingen errichteten und erweiterten Institute der Naturwissenschaftlichen und Medizinischen Fakultät.

Quenstedt F. A., 1889b. Psammochelys Keuperina. (ψάμμος Sand, Χέλυς Schildkröte.). Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg 45, 120–130.
Walther J., 1922. Eberhard Fraas. Verhandlungen der Gesellschaft Deutscher Naturforscher und Ärzte 87: 334–336.

Werneburg I., Hinz J. K, Gumpenberger M., Volpato V., Natchev N., Joyce W. G., 2015. Modeling neck mobility on fossil turtles. Journal of Experimental Zoology B Molecular and Developmental Evolution 324(3), 230-243. https://doi.org/10.1002/jez.b.22557 
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