Neornithes Gadow, 1893 - living birds
Ref: J. Cracraft et al., 2003: 16
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
  Ref: J. Cracraft et al., 2003: 16
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
    Ref: J. Cracraft et al., 2003: 16
       Order [Psittaciformes] Wagler, 1830 [monotypic] - parrots
      Ref: E.C. Dickinson, 2003 [inferred name]
         Family Psittacidae Illiger, 1811 - cockatoos and parrots
        Ref: E.C. Dickinson, 2003: 23, 181 [rough position] [indirect position]
           Subfamily Psittacinae Illiger, 1811 - typical parrots
          Ref: E.C. Dickinson, 2003: 188
             Tribe Platycercini
            Ref: E.C. Dickinson, 2003: 188
               Genus Platycercus Vigors, 1825
              Ref: E.C. Dickinson, 2003: 188 [implicit position]
                 Platycercus elegans (Gmelin, 1788) - crimson rosella
                Ref: E.C. Dickinson, 2003: 189
                   1 Platycercus elegans nigrescens Ramsay, 1888
                  Ref: E.C. Dickinson, 2003: 189
                   2 Platycercus elegans elegans (Gmelin, 1788)
                  Ref: E.C. Dickinson, 2003: 189
                   3 Platycercus elegans melanopterus North, 1906
                  Ref: E.C. Dickinson, 2003: 189
                   4 Platycercus elegans fleurieuensis Ashby, 1917
                  Ref: E.C. Dickinson, 2003: 189
                   5 Platycercus elegans subadelaidae Mathews, 1912
                  Ref: E.C. Dickinson, 2003: 189
                   6 Platycercus elegans flaveolus Gould, 1837
                  Ref: E.C. Dickinson, 2003: 189