| Family by Latin name Family (Common name) (See Family by common name) |
|---|
| Carettochelyidae (Pig-nose Turtles) |
| Chelidae (Austro-American Side-necked Turtles) |
| Cheloniidae (Marine Turtles) |
| Chelydridae (Snapping Turtles) |
| Dermatemydidae (River Turtles) |
| Dermochelyidae (Leatherback Turtles) |
| Emydidae (Pond Turtles) |
| Geoemydidae (None) |
| Kinosternidae (American Mud and Musk Turtles) |
| Pelomedusidae (Afro-American Side-necked Turtles) |
| Platysternidae (Big-headed Turtles) |
| Podocnemidae (None) |
| Testudinidae (Tortoises) |
| Trionychidae (Softshell Turtles) | Family by Common name |
| Afro-American Side-necked Turtles |
| American Mud and Musk Turtles |
| Austro-American Side-necked Turtles |
| Big-headed Turtles |
| Leatherback Turtles |
| Marine Turtles |
| Pig-nose Turtles |
| Pond Turtles |
| River Turtles |
| Snapping Turtles |
| Softshell Turtles |
| Tortoises |
|
