Families
The following lists the family—the Latin name of the family, date in which the species was formally described and classified, and the binomial authority on the species; the number of genera belonging to the family; the name or names commonly used; an example species and an example image.
| Cryptodira – 11 families, 74 genera, over 200 species | ||||
| Family | Genera | Common name(s) | Example species | Example image |
|---|---|---|---|---|
| Carettochelyidae |
1 | Pig-nosed turtle | Pig-nosed turtle (Carettochelys insculpta) | |
| Cheloniidae |
5 | Sea turtles | Green sea turtle (Chelonia mydas) | |
| Chelydridae |
2 | Snapping turtles | Alligator snapping turtle (Macrochelys temminckii) | |
| Dermatemydidae |
1 | Central American river turtle | Central American river turtle (Dermatemys mawii) | |
| Dermochelyidae |
1 | Leatherback sea turtle | Leatherback sea turtle (Dermochelys coriacea) | |
| Emydidae |
12 | Pond or water turtles | Red-eared slider (Trachemys scripta elegans) | |
| Geoemydidae |
24 | Asian river, leaf, roofed or Asian box turtles | Malayan box turtle (Cuora amboinensis) | |
| Kinosternidae |
4 | Mud or musk turtles | Common musk turtle (Sternotherus odoratus) | |
| Platysternidae |
1 | Big-headed turtle | Big-headed turtle (Platysternon megacephalum) | |
| Testudinidae |
12 | Tortoises | Aldabra giant tortoise (Geochelone gigantea) | |
| Trionychidae |
14 | Softshell turtles | Spiny softshell turtle (Apalone spinifera) | |
| Pleurodira – 3 families, 16 genera, over 60 species | ||||
| Family | Genera | Common names | Example species | Example image |
| Chelidae |
15 | Austro-American sideneck turtles | Common snakeneck turtle (Chelodina longicollis) | |
| Pelomedusidae |
2 | Afro-American sideneck turtles | African helmeted turtle (Pelomedusa subrufa) | |
| Podocnemididae |
3 | Madagascar big-headed, Big-headed Amazon River turtle and South American sideneck river turtles | Madagascar big-headed turtle (Erymnochelys madagascariensis) | |
Read more about this topic: List Of Testudines Families
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—David Elkind (20th century)
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—Urie Bronfenbrenner (b. 1917)