Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988] Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes Eureptilia Olson, 1947 Anapsida Osborn, 1903 see Subclass Anapsida Osborn, 1903