Grogan, E.D. & Lund, R. & Fath, M. (2014)
A New Petalodont Chondrichthyan from the Bear Gulch Limestone of Montana, USA, with Reassessment of Netsepoye hawesi and Comments on the Morphology of Holomorphic Petalodonts.
Paleontological Journal, 48(9), 1003–1014 DOI: 10.1134/S0031030114090044