Protostega gigas Cope 1871 (sea turtle)

Reptilia - Testudines - Protostegidae

Synonyms: Protostega dixie Zangerl 1953, Protostega potens Hay 1908

Full reference: E. D. Cope. 1871. [A brief account of the expedition of seventeen days, which I have just made in the valley of the Smoky Hill river in Kansas]. Proceedings of the American Philosophical Society 12(86):174-176

Belongs to Protostega according to G. R. Wieland 1909

See also Cope 1871, Cope 1872, Hay 1902, Hay 1908, Hooks 1998, Leidy 1873, Shimada and Hooks 2004, Swinton 1934, Thurmond and Jones 1981 and Zangerl 1953

Sister taxa: Protostega eaglefordensis, Protostega marshii

Type specimens:

  • Protostega gigas: Its type locality is near Butte Creek, which is in a Coniacian/Campanian marine chalk in the Niobrara Formation of Kansas
  • Protostega dixie: CNHM P27314, a partial skeleton. Its type locality is Moore Brothers Farm, which is in a Santonian carbonate limestone in Alabama.
  • Protostega potens: AMNH 180, a partial skeleton (basioccipital and hyoplastron). Its type locality is near Elkader, which is in a Santonian/Campanian offshore chalk in the Niobrara Formation of Kansas.



• Cretaceous of United States (3: Alabama, Kansas collections)

Total: 3 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.

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