Zangerl, R. (1966)
A New Shark of the Family Edestidae, Ornithoprion hertwigi from the Pennsylvanian Mecca and Logan Quarry Shales of Indiana. Fieldiana Geology, 16(1): 1–44
Ossian, C.R. (1974)
Paleontology, paleobotany and facies characteristics of a Pennsylvanian delta in southeastern Nebraska. Unpubl. Ph.D. thesis, Univ. Texas, Austin, Texas: 393 pp.
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.