Conant, R.

1975 A Field Guide to Reptiles and Amphibians of Eastern and Central North America. Houghton Mifflin, Boston.

Gilbert, B. M.

1980 Mammalian Osteology. Modern, Laramie, Wyoming.

Appendix B:

Osteobiography of the Alamo North Wall Cranium

David M. Glassman and D. Gentry Steele