Thecachampsa antiquus Leidy 1852 (crocodilian)

Reptilia - Crocodylia

Alternative combinations: Crocodilus antiqua, Crocodylus antiquus, Thecachampsa antiqua

Synonyms: Crocodylus contusor Cope 1867, Thecachampsa contusor Cope 1867

Full reference: J. Leidy. 1852. Description of a new species of crocodile from the Miocene of Virginia. Journal of the Academy of Natural Sciences of Philadelphia 2(2):135-138

Belongs to Thecachampsa according to J. P. Rio and P. D. Mannion 2021

See also Cope 1867, Hay 1930, Myrick 2001 and Weems 2018

Sister taxa: Thecachampsa carolinensis, Thecachampsa marylandica, Thecachampsa minor, Thecachampsa sericodon

Type specimens:

  • Thecachampsa antiquus: ANSP 9188 and 9189, a partial skeleton (2 teeth, 2 vertebrae, a rib fragment, and an ungual phalanx). Its type locality is Potomac River, Stratford Hall Plantation, which is in a Serravallian marine horizon in the Choptank Formation of Virginia.
  • Thecachampsa contusor: ANSP 9152, a tooth. Its type locality is James T. Thomas estate, which is in a Serravallian offshore shelf horizon in the Calvert Formation of Maryland.

Ecology: carnivore

Distribution:

• Pliocene of United States (1: North Carolina collection)

• Miocene of United States (6: Maryland, Virginia)

• Paleocene of United States (1: Virginia)

Total: 8 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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