A description of the skull of eubaena cephalica (hay, 1904) and new insights into the cranial circulation and innervation of baenid turtles
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Rollot, Yann
Laboratoire Paléontologie, University of Poitiers, Poitiers, France - Institut des Sciences de l?Evolution de Montpellier, University of Montpellier, France
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Lyson, Tyler R.
Department of Earth Sciences, Denver Museum of Nature and Science, Colorado, USA
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Joyce, Walter G.
Department of Geosciences, University of Fribourg, Switzerland
Published in:
- Journal of Vertebrate Paleontology. - 2018, vol. 38, no. 3, p. e1474886
English
The internal carotid system has played an important role in the systematics of fossil turtles, including baenids. A new, almost perfectly preserved specimen of Eubaena cephalica provides an opportunity to explore for the first time the cranial circulation and innervation of this taxon using CT (computed tomography) scans. We here document that the skull possesses a well-developed, branching canalis nervus vidianus but lacks a canalis caroticus palatinum, which contradicts the previously reported circulation and innervation pattern for E. cephalica specifically and that of paracryptodires in general. Future investigation using CT scanning technology will be able to clarify if the pattern reported herein is unique to E. cephalica or is representative of paracryptodires in general. The latter conclusion will likely have considerable implications for the systematics of fossil turtles.Citation for this article: Rollot, Y., T. R. Lyson, and W. G. Joyce. 2018. A description of the skull of Eubaena cephalica (Hay, 1904) and new insights into the cranial circulation and innervation of baenid turtles.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Géosciences
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Language
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Classification
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Palaeontology
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/307265
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