PaleoDB taxon number: 138249
Full reference: G. E. Lewis and P. P. Vaughn. 1965. Early Permian Vertebrates from the Cutler Formation of the Placerville Area, Colorado. United States Geological Survey Professional Papers 503-C:C1-C46
Sister taxa: none
Type specimen: USNM 22099, a partial skeleton (a fractured, fairly complete skull along with a partial vertebral column, ribs, and several girdle and limb elements). Its type locality is Placerville Localities 3 + 4, which is in a Wolfcamp fluvial-lacustrine siliciclastic/conglomerate in the Cutler Formation of Colorado.