Amphibia - Nectridea - Urocordylidae

Full reference: D. W. Thayer. 1985. New Pennsylvanian Lepospondyl Amphibians from the Swisshelm Mountains, Arizona. Journal of Paleontology 59(3):684-700

Belongs to Ptyonius according to R. L. Carroll et al. 1998

See also Thayer 1985

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

Type specimen: UALP 5264, a set of vertebrae (single caudal vertebra lacking the neural spine). Its type locality is Swisshelm Mts. amphibian site, which is in a Westphalian A/Westphalian B shallow subtidal limestone in the Black Prince Limestone Formation of Arizona.

Ecology:

Distribution: found only at Swisshelm Mts. amphibian site

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Specimen images are retrieved through the ePANDDA API.