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 Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900 Order Psittaciformes Wagler, 1830 - parrots 1 Family Psittacidae Illiger, 1811 - cockatoos and parrots