Early Permian chondrichthyans of the Middle and South Urals. Revista Brasileira de Paleontologia, 8(2), 127–138
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.