PaleoDB taxon number: 136987
Full reference: E. C. Olson and J. R. Beerbower. 1953. The San Angelo Formation, Permian of Texas, and its Vertebrates. Journal of Geology 61(5):389-423
Sister taxa: none
Type specimen: CNHM (FMNH) UR 143, a partial skull (part of occipital-sphenoid-otic complex and side wall of skull). Its type locality is Locality KN (San Angelo Fm.), which is in a Kungurian/Roadian terrestrial shale/conglomerate in the San Angelo Formation of Texas.