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A description of the skull of eubaena cephalica (hay, 1904) and new insights into the cranial circulation and innervation of baenid turtles

  • Rollot, Yann Laboratoire Paléontologie, University of Poitiers, Poitiers, France - Institut des Sciences de l?Evolution de Montpellier, University of Montpellier, France
  • Lyson, Tyler R. Department of Earth Sciences, Denver Museum of Nature and Science, Colorado, USA
  • Joyce, Walter G. Department of Geosciences, University of Fribourg, Switzerland
    04.05.2018
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.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Palaeontology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/307265
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