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2024-06
Volume 10, issue 02
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ISSN: 2274-0422

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Specimen infos
Collection

Information
Sex : indet

Age group : Adult

Age (if applicable) : Late Triassic

Material Type : steinkern

Origin : Neuenhaus (Häfner-Neuhausen in Schönbuch forest), Baden-Württemberg, Germany, and stems from Löwenstein-Formation (Weißer Keupersandstein)

Taxonomy
Class : Sauropsida

Order : Testudines

Family : Proganochelydae

Genus : Proganochelys

Species :quenstedtii


Description
This steinkern of the shell is the holotype of Proganochelys quenstedtii.

Related article
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

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.
      


  M3 article infos

Published in Volume 08, issue 03 (2022)

PDF

3D data

M3#967

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

Type: "3D_surfaces"

doi: 10.18563/m3.sf.967

Data citation: Ingmar Werneburg, Christina Kyriakouli and Tomasz Szczygielski, 2022. M3#967. doi: 10.18563/m3.sf.967

  state:published




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