Class Reptilia Linnaeus, 1758 - reptiles
Count: [*†*] 4o;47f; †14o;194f [5 Jan 2017]
1 Subclass Anapsida Osborn, 1903 - anapsids
Count: [*†*] 1o;11f; †1o;16f [4 Jan 2017]
2 Subclass Lepidosauria Duméril & Bibron, 1839
Count: [*†*] 2o;35f; †1o;16f [4 Jan 2017]
3 Subclass Archosauria Cope, 1869
see Division Archosauria Cope, 1869
Count: [*†*] 1o;1f; †4o;104f [4 Jan 2017]
4 Subclass †Parapsida (Williston, 1925) [monotypic]
Count: [†*] †1o;5f [4 Jan 2017]
5 Subclass †Araeoscelida [monotypic]
see Order Araeoscelidia Williston, 1913
Count: [†*] †1f [4 Jan 2017]
6 Order †Trilophosauria Romer, 1956
Count: -
7 Order †Weigeltisauria Kuhn, 1939 [monotypic]
Count: [†*] †1f [4 Jan 2017]
8 Subclass †Euryapsida Colbert, 1945
see Subclass Diapsida Osborn, 1903
Count: [†*] †2o;12f [5 Jan 2017]
9 Subclass †Synapsida Osborn, 1903 - synapsids
see Class Synapsida Osborn, 1903
Count: [†*] †3o;39f [5 Jan 2017]