Polycotylus latipinnis Cope 1869 (plesiosaur)

Reptilia - Sauropterygia - Polycotylidae

Alternative combination: Polycotylus latippinus

Synonym: Polycotylus dolichopus Williston 1906

Full reference: E. D. Cope. 1869. Synopsis of the Extinct Batrachia, Reptilia and Aves of North America. Part I. Transactions of the American Philosophical Society, New Series 14:1-104

Belongs to Polycotylus according to B. A. Schumacher and J. E. Martin 2016

See also Adams 1997, Carpenter 1996, Cope 1869, Cope 1869, Hay 1902, Leidy 1873, O'Keefe 2001, O'Keefe 2004, O'Keefe and Chiappe 2011, Storrs 1999, Welles 1962, Williston 1903, Williston 1906 and Williston 1908

Sister taxon: Polycotylus suprajurensis

Type specimens:

  • Polycotylus latipinnis: USNM 27678/AMNH 1735, a set of postcrania (vertebrae, ilium, and metapodials (USNM) plus phalanges (AMNH)). Its type locality is 8 km east of Fort Wallace, which is in a Campanian marine limestone in the Niobrara Formation of Kansas.
  • Polycotylus dolichopus: YPM 1642 [paratype], 1646 [holotype], a set of limb elements (a femur and most of the paddle (YPM 1642); a humerus and some mesopodial/epipodial bones (YPM 1646)). Its type locality is Logan County Dolichorhynchops dolichopus locality (PROXY), which is in a Coniacian/Campanian marine horizon in the Niobrara Formation of Kansas.

Ecology: aquatic carnivore

Distribution:

• Cretaceous of United States (6: Alabama, Kansas, South Dakota collections)

Total: 6 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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