^ abcGray, John Edward. 1847. Description of a new genus of Emydae. Proceedings of the Zoological Society of London 1847(15):55–56.
^Duméril, André Marie Constant & Bibron, Gabriel. 1851. [Emys areolata, Emys berardii, Cinosternon leucostomum, Cinosternon cruentatum]. In: Duméril, A.M.C. & Duméril, A.H.A. Catalogue Methodique de la Collection des Reptiles (Museum d'Histoire Naturelle de Paris). Paris: Gide and Baudry, 224 pp.
^Cope, Edward D. 1868. An examination of the Reptilia and Batrachia obtained by the Orton expedition to Equador [sic] and the upper Amazon, with notes on other species. Proceedings of the Academy of Natural Sciences of Philadelphia 20:96–140.
^Gray, John Edward. 1870b. Supplement to the Catalogue of Shield Reptiles in the Collection of the British Museum. Part I. Testudinata (Tortoises). London: British Museum, 120 pp.
^Werner, Franz. 1901. Neue Reptilien des Königsberger zoologischen Museums. Zoologischer Anzeiger 24:297–301.
^Turtle Taxonomy Working Group [van Dijk, P.P., Iverson, J.B., Shaffer, H.B., Bour, R., and Rhodin, A.G.J.]. 2012. Turtles of the world, 2012 update: annotated checklist of taxonomy, synonymy, distribution, and conservation status. Chelonian Research Monographs No. 5, pp. 000.243–000.328, doi:10.3854/crm.5.000.checklist.v5.2012, [1].