Species: driverensis OLSON, 1962
Etymology:
Holotype: FMNH (CNHM) UR 486
Locality: Loc. KY, Driver Ranch, Knox County, Texas.
Horizon: Member?, Middle San Angelo Formation, Lower Pease River Group.
Biostratigraphy: Land-vertebrate faunachron lower E.
Age: Lower Guadalupian Stage, Upper Rotliegendes Epoch, Early Permian.
Material: Parts of 3 vertebrae, and several ribs.