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
           Family Psittacidae Illiger, 1811 - cockatoos and parrots
             Subfamily Psittacinae Illiger, 1811 - typical parrots
               Genus Polytelis Wagler, 1832
                 Polytelis alexandrae Gould, 1863 - Alexandra's parrot
                 Polytelis anthopeplus (Lear, 1831) - regent parrot
                 Polytelis swainsonii (Desmarest, 1826) - superb parrot