PaleoDB taxon number: 142568
Full reference: E. C. Olson. 1962. Late Permian terrestrial vertebrates, U.S.A. and U.S.S.R. Transactions of the American Philosophical Society, New Series 52(2):1-224
Sister taxa: none
Type specimen: CNHM (FMNH) UR 495, a partial skull (part of temporal region, quadrate, pterygoid, maxilla, and four single, associated teeth). Its type locality is Locality KAC (Lower Flowerpot Shale), which is in a Kungurian/Roadian fluvial claystone/sandstone in the San Angelo Formation of Texas.