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Fossil Record A palaeontological open-access journal of the Museum für Naturkunde
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Volume 20, issue 1
Foss. Rec., 20, 69–85, 2017
https://doi.org/10.5194/fr-20-69-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Foss. Rec., 20, 69–85, 2017
https://doi.org/10.5194/fr-20-69-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 03 Feb 2017

Research article | 03 Feb 2017

Turtle shell bone and osteoderm histology of Mesozoic and Cenozoic stem-trionychian Adocidae and Nanhsiungchelyidae (Cryptodira: Adocusia) from Central Asia, Mongolia, and North America

Torsten M. Scheyer et al.

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We review shell bone microstructures of Adocidae and Nanhsiungchelyidae, two groups of extinct hide-necked turtles related to modern soft-shelled turtles (Trionychidae) and the pig-nosed turtle Carettochelys insculpta (Carettochelyidae). Adocids and nanhsiungchelyids both have a good fossil record in North America and Asia during the Cretaceous and Cenozoic. Our microstructural data supplement previously reported differences in external shell morphology between adocids and nanhsiungchelyids.
We review shell bone microstructures of Adocidae and Nanhsiungchelyidae, two groups of extinct...
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