Taxonomy: The eastern box turtle (Terrapene carolina carolina) is the only subspecies that occurs in Indiana. The eastern box turtle belongs to the genus Terrapene and is in the family Emydidae which is represented in Indiana by ten different species.
Conant, R. and J. T . Collins. 1998. Reptiles and Amphibians of Eastern and Central North America. Third Edition, Expanded. Houghton Mifflin, New York, New York
Ernst, C. H. and J. E. Lovich. 2009. Turtles of the United States and Canada. Second Edition. The Johns Hopkins University Press, Baltimore, MD
Kinney, V. C., N. J. Engbrecht, J. L. Heemeyer, and M. J. Lannoo. 2010. New County Records for Amphibians and Reptiles in Southwestern Indiana. Herpetological Review 41.3:387
Klueh, S., J. Mirtl, and T. Shier. 2011. Terrapene carolina. Eastern Box Turtle. Geographic distribution. Herpetological Review 42.2:239.
Klueh, S., A. Garcia, A. Maves, and L. Landowski. 2011. Terrapene carolina. Eastern Box Turtle. Geographic distribution. Herpetological Review 41.2:242.
Minton, S. A. Jr. 2001. Amphibians and Reptiles of Indiana. Indiana Academy of Science, Indianapolis, IN
Reintjes-Tolen, S., M. C. Granatosky, K. L. Krysco, and J. B. Iverson. 2011. Terrapene carolina. Eastern Box Turtle. Geographic distribution. Herpetological Review 42.4:566.