Order Testudines - Turtles

    Suborder Cryptodira

            * Family Chelydridae (Snapping Turtles)

        Superfamily Testudinoidea

            * Family Emydidae (Pond Turtles/Box and Water Turtles)
            * Family Testudinidae (Tortoises)
            * Family Geoemydidae (Asian River Turtles, Leaf and Roofed Turtles, Asian Box Turtles)

        Superfamily Trionychoidea

            * Family Carettochelyidae (Pignose Turtles)
            * Family Trionychidae (Softshell Turtles)

        Superfamily Kinosternoidea

            * Family Dermatemydidae (River Turtles)
            * Family Kinosternidae (Mud and Musk Turtles)

        Superfamily Chelonioidea

            * Family Cheloniidae (Sea Turtles)
            * Family Dermochelyidae (Leatherback Turtles)

    Suborder Pleurodira

            * Family Chelidae (Austro-American Sideneck Turtles)

        Superfam. Pelomedusoidea

            * Family Pelomedusidae (Afro-American Sideneck Turtles)
            * Family Podocnemididae (Madagascan Big-headed and American Sideneck River Turtles)