Phylum Chordata Bateson, 1885 - chordates Count: - Subphylum Vertebrata Cuvier, 1812 - vertebrates Count: - Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758 Count: - Order Struthioniformes Latham, 1790 Count: - Family Struthionidae Batsch, 1788 - ostriches Count: -