Gates, T.A. & Gorscak, E. & Makovicky, P.J. (2019)
New sharks and other chondrichthyans from the latest Maastrichtian (Late Cretaceous) of North America. Journal of Paleontology, 93(3), 512–530
DOI: 10.1017/jpa.2018.92

Wynd, B.M. & Demar, D.G. & Wilson, G.P. (2020)
Euselachian diversity through the uppermost Cretaceous Hell Creek Formation of Garfield County, Montana, USA, with implications for the Cretaceous-Paleogene mass extinction in freshwater environments. Cretaceous Research, 113, Article 104483
DOI: 10.1016/j.cretres.2020.104483