Literature
- Atkin, N. B., G. Mattinson, W. Becak, and S. Ohno. 1965. The comparative DNA content of 19 species of placental mammals, reptiles, and birds. Chromosoma 17: 1-10.
- Gorman, G. C. 1973. The chromosomes of the Reptilia, a cytotaxonomic interpretation. In: A. B. Chiarelli and E. Capanna (eds.), Cytotaxonomy and Vertebrate Evolution, pp. 349-424. Academic Press, New York.
- Rafinesque, C. S. 1832. Descriptions of two new genera of soft shell turtles of North America. Atlantic J. Friend. Knowledge, Philadelphia 1: 64-65.