The Turtles (Testudinata) - order
(Cryptodira) - suborder
The Snapping Turtles
(Chelydridae)
- family
The Pond Turtles, Box Turtles & Water Turtles
(Emydidae)
- family
The True Tortoises
(Testudinidae)
- family
The Eurasian Pond & River Turtles & Neotropical Wood Turtles
(Geoemydidae)
- family

(Carettochelyidae)
- family
The Softshell Turtles
(Trionychidae)
- family

(Dermatemydidae)
- family

(Kinosternidae)
- family

(Cheloniidae)
- family
The Leatherback Sea Turtle
(Dermochelyidae)
- family
(Pleurodira) - suborder

(Bothremydidae)
- family -extinct-

(Chelidae)
- family

(Dortokidae)
- family -extinct-

(Eusarkiidae)
- family -extinct-

(Palaenemididae)
- family

(Pelomedusidae)
- family

(Podocnemididae)
- family

(Propleuridae)
- family -extinct-

(Sanke)
-
() - suborder

()
- family

()
- family

()
- family

()
- family
() - suborder

()
- family

()
- family

()
- family

()
- family
() - suborder

()
- family

()
- family

()
- family

()
- family