Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Superclass Homotherma Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758 Subclass †Sauriurae Haeckel, 1866 see Subclass Archaeornithes Gadow, 1893 1 Genus †Archaeopteryx Meyer, 1861