Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       Order [Psittaciformes] Wagler, 1830 [monotypic] - parrots
         Family Psittacidae Illiger, 1811 - cockatoos and parrots
           Subfamily Psittacinae Illiger, 1811 - typical parrots
             Tribe Platycercini
               Genus Pezoporus Illiger, 1811
                 Pezoporus wallicus (Kerr, 1792) - ground parrot
                   1 Pezoporus wallicus flaviventris North, 1911 - western ground parrot
                   2 Pezoporus wallicus wallicus (Kerr, 1792)
                   3 Pezoporus wallicus leachi Mathews, 1912