Phylum Chordata Bateson, 1885 - chordates Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758 Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893 Superorder Palaeognathae Pycraft, 1900 see Cohort Palaeognathae Pycraft, 1900 Order Apterygiformes Haeckel, 1866 1 Family Apterygidae Gray, 1840 - kiwis