Testudines
Order within Reptilia
Dermatemydidae
Dortokidae
Kinosternidae
Platychelyidae
Carettochelyidae
Chelidae
Cheloniidae
Chelydridae
Dermochelyidae
Emydidae
Geoemydidae
Pelomedusidae
Platysternidae
Podocnemididae
Protostegidae
Testudinidae
Trionychidae