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 Sulidae Reichenbach, 1849 - gannets, boobies
                     Genus Sula Brisson, 1760
                       1 Sula dactylatra Lesson, 1831 - masked booby
                       2 Sula sula (Linnaeus, 1766) - red-footed booby
                       3 Sula abbotti Ridgway, 1893 - Abbott's booby see Papasula abbotti (Ridgway, 1893)
                       4 Sula leucogaster (Boddaert, 1783) - brown booby
                       5 Sula variegata (Tschudi, 1843) - Peruvian booby
                       6 Sula nebouxii Milne-Edwards, 1882 - blue-footed booby