Amphibia - Nectridea - Urocordylidae

Alternative combination: Colosteus marshii

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 Ptyonius according to E. D. Cope 1875

See also Anderson 2001, Cope 1869 and Hay 1902

Sister taxa: Ptyonius marshi, Ptyonius nummifer, Ptyonius olisthmonaias, Ptyonius serrula, Ptyonius vinchellianus

Type specimen: AMNH 6862, a partial skeleton. Its type locality is Linton, which is in a Westphalian D mire/swamp coal in Ohio.

Distribution: found only at Linton

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Specimen images are retrieved through the ePANDDA API.