On the dentition of the petalodont shark, Climaxodus. Quarterly Journal of the Geological Society of London, 75(1), 1–6
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.