Phylum [Vertebrata] (Lamarck, 1801) Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825 Subclass †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758 Order †Anthracosauria Säve-Söderbergh, 1934 Family †Seymouridae Genus †Seymouria Broili, 1904