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 Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
                   Suborder Lari Sharpe, 1891 - gulls and allies
                     Family Laridae Vigors, 1825 - gulls, terns and skimmers
                       1 Genus Larus Linnaeus, 1758
                       2 Genus Rhodostethia MacGillivray, 1842
                       3 Genus Rissa Stephens, 1826
                       4 Genus Xema Leach, 1819
                       5 Genus Creagrus Bonaparte, 1854
                       6 Genus Pagophila Kaup, 1829