Full reference: J. E. Gray. 1825. A synopsis of the genera of Reptilia and Amphibia. Annals of Philosophy, n. s., London 10:193-217
Parent taxon: Pantestudinoidea according to E. Vlachos 2018
See also Antunes and de Broin 1977, Baur 1893, Carroll 1988, Claude et al. 2012, Collareta et al. 2020, Danilov and Parham 2008, de Broin and de la Fuente 1993, Estes 1964, Gaffney 1975, Garcia et al. 2016, Hervet 2003, Hervet 2004, Hervet 2006, Joyce 2007, Joyce and Lyson 2010, Joyce et al. 2004, Karl 2007, Kuhn 1966, Pérez-García et al. 2017, Takahashi et al. 2013, Takahashi et al. 2003, van Dijk et al. 2014 and Vremir 2013
Sister taxa: none
Subtaxa: Bergouniouxchelys Borkenia Chrysemys (Pseudemys) hibbardi Clemmys hesperia Clemmys percrassus Cucullemys Cuvierichelys Emydidae Emys euglypha Emys euthnetus Emys latilabiatus Emys megaulax Emys pachylomus Emys petrolei Eupachemys obtusus Euroemys Francellia Geoemydidae Hadrianus allabiatus Hybemys arenarius Landreatchelys Lindholmemydidae Notomorpha testudinea Owenemys Palaeomauremys Panemydidae Pangeoemydidae Pantestudinidae Promalacoclemmys Provencemys Rhinoclemmys nicoyana Testudinidae Testudo culbratus Testudo distans Testudo isis Testudo munda Trachemys delicata Trachemys nuchocarinata Wutuchelys
Ecology: aquatic omnivore