Phylum [Vertebrata] Lamarck, 1801 see Infraphylum Vertebrata Lamarck, 1801 Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825 Subclass †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758 Order †uncertain Genus †Crassigyrinus Watson, 1926