In the summer of 1946 a party from the University of Kansas Museum of Natural History visited exposures of the Laverne formation in Beaver County, Oklahoma, at the invitation of Dr. Stuart Schoff of the United States Geological Survey. When examining the marl beds an Emydid turtle was discovered which appears to be an unnamed species of the genus Chrysemys . A description of the new species follows. Chrysemys limnodytes , new species Holotype. —University of Kansas Museum of Natural History No.

Bergounioux, Frederic-Marie. 1935. Contribution a l'étude paléontoligique des chéloniens: Chéloniens fossiles du Bassin d'Aquitaine. Memoires de la Société géologique de France, vol. 11, Mem. 25, pp. 1-215, 44 figs., 16 pls. 1937. Relations fauniques entre des chélonien fossiles de l'Espagne et de la France. Comptes Rendus Acad. Sci. Paris, vol. 204, pp. 793-795. 1938. Chéloniens fossiles d'Espagne. Bulletin de la Societe d'histoire Naturelle de Toulouse, vol. 72, pp. 257-288, 7 figs. Chaney, R.