Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988] Count: - 1 Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes Count: - 2 Amphibia Gray 1825 [Gauthier, Kluge & Rowe 1988] - amphibians see Class Amphibia Gray, 1825 Count: [g] 54f;482g;968s