González Porter, Gracia P.; Hailer, Frank; Flores Villela, Oscar; García Anleu, Rony; Maldonado, Jesús E. (17 May 2011). "Patterns of genetic diversity in the critically endangered Central American river turtle: human influence since the Mayan age?". Conservation Genetics. 12 (5): 1229–1242. doi:10.1007/s10592-011-0225-x. S2CID39768099.
Thatcher, Vernon E. (October 1963). "Trematodes of Turtles from Tabasco, Mexico, with a Description of a New Species of Dadaytrema (Trematoda: Paramphistomidae)". The American Midland Naturalist. 70 (2): 347–355. doi:10.2307/2423063. JSTOR2423063.
Thatcher, Vernon E. (October 1963). "Trematodes of Turtles from Tabasco, Mexico, with a Description of a New Species of Dadaytrema (Trematoda: Paramphistomidae)". The American Midland Naturalist. 70 (2): 347–355. doi:10.2307/2423063. JSTOR2423063.
González Porter, Gracia P.; Hailer, Frank; Flores Villela, Oscar; García Anleu, Rony; Maldonado, Jesús E. (17 May 2011). "Patterns of genetic diversity in the critically endangered Central American river turtle: human influence since the Mayan age?". Conservation Genetics. 12 (5): 1229–1242. doi:10.1007/s10592-011-0225-x. S2CID39768099.