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

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

doi: 10.18563/journal.m3.168

  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.
      

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in press

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3D models related to the publication: Siphonodella leiosa (Conodonta), a new unornamented species from the Tournaisian (lower Carboniferous) of Puech de la Suque (Montagne Noire, France).
Louise Souquet, Carlo Corradini and Catherine Girard
Published online: 2020-07-21

Keywords: Carboniferous; Conodonts; Holotype; Montagne Noire; Siphonodella

doi: 10.18563/journal.m3.115

  Abstract

    The present 3D Dataset contains the 3D models of the holotype and the paratypes of the new species Siphonodella leiosa described and analyzed in the following publication: L. Souquet, C. Corradini, C. Girard: Siphonodella leiosa (Conodonta), a new unornamented species from the Tournaisian (lower Carboniferous) of Puech de la Suque (Montagne Noire, France). Geobios, https://doi.org/10.1016/j.geobios.2020.06.004

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Published in Volume 06, issue 03 (2020)

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Holotype specimen of Donrussellia magna, an adapiform primate from the early Eocene (MP7) of Southern France
Anusha Ramdarshan, Marc Godinot, Samuel Bédécarrats and Rodolphe Tabuce
Published online: 2015-06-18

Keywords: Adapiformes; Early Eocene; Holotype; Primates; Southern France

doi: 10.18563/m3.1.2.e2

  Abstract

    This project presents a µCT dataset and an associated 3D surface model of the holotype of Donrussellia magna (UM PAT 17; Primates, Adapiformes). UM PAT17 is the only known specimen for the species and consists of a well-preserved left lower jaw with p4-m3. It documents one of the oldest European primates, eventually dated near the Paleocene Eocene Thermal Maximum. 

  Specimens

    Donrussellia magna UM PAT 17 View specimen

    M3#17_UM PAT 17

    3D surface file model of UM PAT 17 (type specimen of Donrussellia magna), which is a well preserved left lower jaw with p4-m3. The teeth (and roots) were manually segmented.

    Type: "3D_surfaces"

    3D view: doi: 10.18563/m3.sf17  




    Download 3D data

    M3#18_UM PAT 17

    CT Scan Data of Donrussellia magna UM PAT 17. Voxel size (in µm): 36µm (isotropic voxels). Dimensions in x,y,z : 594 pixels, 294 pixels, 1038 pixels. Image type : 8-bit voxels. Image format : raw data format (no header).

    Type: "3D_CT"

    doi: 10.18563/m3.sf18  




    Download CT data


 
  M3 article infos

Published in Vol. 01, Issue 02 (2015)

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