Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Psittaciformes Wagler, 1830 - parrots
                   Family Psittacidae Illiger, 1811 - cockatoos and parrots
                     Subfamily Psittacinae Illiger, 1811 - typical parrots
                       Tribe Araini Gray, 1840 see Tribe Arini Gray, 1840
                         Genus Bolborhynchos see Genus Bolborhynchus Bonaparte, 1857
                           1 Bolborhynchos ferrugineifrons (Lawrence, 1880) see Bolborhynchus ferrugineifrons (Lawrence, 1880)
                           2 Bolborhynchos lineola (Cassin, 1853) see Bolborhynchus lineola (Cassin, 1853)