Everhart, M.J., 2007. New stratigraphic records (Albian-Campanian) of Rhinobatos sp. (Chondrichthyes: Rajiformes) from the Cretaceous of Kansas. Transactions of the Kansas Academy of Science, 110:225-235
Everhart, M.J., 2009. First occurrence of marine vertebrates in the Early Cretaceous of Kansas: Champion Shell bed, basal Kiowa Formation. Transactions of the Kansas Academy of Science, 112:201-210