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 Loriini del Hoyo et al., 2014 see Family Loriinidae Selby, 1836
                         Genus Psittacula Cuvier, 1800
                           1 Psittacula eupatria (Linnaeus, 1766) - Alexandrine parakeet
                           2 Psittacula krameri (Scopoli, 1769) - rose-ringed parakeet
                           3 Psittacula alexandri (Linnaeus, 1758) - red-breasted parakeet
                           4 Psittacula derbyana (Fraser, 1850) see Psittacula derbiana (Fraser, 1852)
                           5 Psittacula himalayana (Lesson, 1831) - slaty-headed parakeet
                           6 Psittacula cyanocephala (Linnaeus, 1766) - plum-headed parakeet
                           7 Psittacula calthorpae (Blyth, 1849)