1. Archibald, J. D. 1977.Fossil Mammalia and Testudines of the Hell Creek Formation, and the Geology of the Tullock and Hell Creek Formations, Garfield County694Berkeley, California: University of California. Unpublished Ph.D. dissertation
2. Archibald, J. D. and Hutchison, J. H. 1979.Revision of the genusPalatobaena(Testudines, Baenidae), with the description of a new species19 Postilla, no. 177
3. Carr, A. 1952.Handbook of Turtles542Ithaca, New York: Cornell University Press.