Genus Pyxidea

Literature

• Bramble, D. M. 1974. Emydid shell kinesis: biomechanics and evolution. Copeia.
• Gray, J. E. 1863a. Observations on the box tortoises, with the descriptions of three new Asiatic species. Proc. Zool. Soc. London 1863: 173-177.
• McDowell, S. B. 1964. Partition of the genus Clemmys and related problems in the taxonomy of the aquatic Testudinidae. Proc. Zool. Soc. London 143: 239-279.