Chondrichthyan and Osteichthyan Paleofaunas from the Cretaceous (Late Maastrichtian) Fox Hills Formation of North Dakota, USA: Paleoecology, Paleogeography, and Extinction. Bulletins of American Paleontology, 398, 1–94
Cartilaginous fishes from the Fox Hills Formation (Cretaceous: Maastrichtian), North Dakota. Proceedings of North Dakota Academy of Science, 49: 60