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 Pelecaniformes Sharpe, 1891
                   Family Pelecanidae Rafinesque, 1815 - pelicans
                     Genus Pelecanus Linnaeus, 1758
                       Pelecanus occidentalis Linnaeus, 1766 - brown pelican
                         1 Pelecanus occidentalis occidentalisᵀ Linnaeus, 1766
                         2 Pelecanus occidentalis thagus Molina, 1782