Hoganson, J.W. & Erickson, J.M. & Everhart, M.J. (2022)
First Report of Elasmobranchii and Osteichthyans from the Fox Hills Formation (Late Cretaceous), Poison Springs Locality, Northeastern Colorado. Transactions of the Kansas Academy of Science, 125(3-4), 195–232
DOI: 10.1660/062.125.0310

Hoganson, J.W. & Erickson, J.M. (2005)
A new species of Ischyodus (Chondrichthyes: Holocephali: Callorhynchidae) from Upper Maastrichtian shallow marine facies of the Fox Hills and Hell Creek formations, Williston Basin, North Dakota, USA. Palaeontology, 48(4), 709–721
DOI: 10.1111/j.1475-4983.2005.00475.x

Hoganson, J.W. & Erickson, J.M. & Holland, F.D. (1995)
Cartilaginous fishes from the Fox Hills Formation (Cretaceous: Maastrichtian), North Dakota. Proceedings of North Dakota Academy of Science, 49: 60