Class Reptilia Linnaeus, 1758 - reptiles Subclass Anapsida Osborn, 1903 - anapsids Order Chelonia Brongniart, 1800 see Class Chelonia Brongniart, 1800 Suborder Cryptodira Cope, 1868 Superfamily Testudinoidea Batsch, 1788 Family Chelydridae Gray, 1831 - snapping turtles Subfamily Platysterninae Romer, 1956 see Family Platysternidae Gray, 1869