Reptilia - Eosuchia - Sphenodontidae

Full reference: G. G. Simpson. 1926. American terrrestrial Rhynchocephalia. American Journal of Science 12(67):12-16

Belongs to Theretairus according to O. P. Hay 1930

See also Simpson 1926

Sister taxa: none

Type specimen: YPM 13764, a mandible. Its type locality is Quarry 9, Como Bluff (YPM), which is in a Kimmeridgian/Tithonian fluvial-lacustrine mudstone/sandstone in the Morrison Formation of Wyoming.

Ecology:

Distribution: found only at Quarry 9, Como Bluff (YPM)

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Specimen images are retrieved through the ePANDDA API.