Zangerl, R. (1990)
Two new stethacanthid sharks (Stethacanthidae, Symmoriida) from the Pennsylvanian of Indiana, U.S.A. Palaeontographica, Abt. A, 213, 115–141
Zangerl, R. (1995)
The problem of vast numbers of cladodont shark denticles in the Pennsylvanian Excello Shale of Pike County, Indiana. Journal of Paleontology, 69(3), 556–563
Ginter, M. & Hampe, O. & Duffin, C.J. (2010)
Handbook of Paleoichthyology, Vol. 3D: Chondrichthyes Paleozoic Elasmobranchii: Teeth Verlag Dr. Friedrich Pfeil, pp. 168, 154 fig., 4 Tab.