↑Günther, A. (1884) Contribution to our knowledge of Hydromedusa, a genus of South-American freshwater turtles., Ann. Mag. nat. Hist. (5) 14: 421-425
↑ 3.03.1Gray, J. E. (1873) Observations on chelonians, with descriptions of new genera and species., Ann. Mag. nat. Hist. (4) 11: 289-308
↑ 4.04.1Gray,J.E. (1855) Description of a new genus and some new species of tortoises., Ann. Mag. Nat. Hist. (2) 15: 67-69
↑Gray, J.E. (1844) Catalogue of Tortoises, Crocodilians, and Amphisbaenians in the Collection of the British Museum., British Museum (Natural History), London. viii + 80 p.
↑ 6.06.1Duméril, A.M.C., and G. Bibron. (1835) Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2., Librairie Encyclopédique de Roret, Paris, 680 p.
↑ 7.07.1Mikan, J.C. (1820) Delectus Florae et Faunae Brasiliensis., Antonii Strauss. Wien. 54 pp.
↑ 8.08.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)