PaleoDB taxon number: 165041
Full reference: E. C. Case. 1911. A revision of the Cotylosauria of North America. Carnegie Institution of Washington Publication 145:1-121
Sister taxa: none
Type specimen: "field no. 250 AMNH", a mandible (fragments of two lower jaws). Its type locality is Beaver Creek, 42 (Arroyo Formation), which is in a Kungurian terrestrial claystone/sandstone in the Arroyo Formation of Texas.