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 Gruiformes Bonaparte, 1854
                   Family Otididae Gray, 1840 - bustards
                     01 Genus Tetrax Forster, 1817
                     02 Genus Otis Linnaeus, 1758
                     03 Genus Ardeotis Le Maout, 1853
                     04 Genus Neotis Sharpe, 1893
                     05 Genus Chlamydotis Lesson, 1839
                     06 Genus Lophotis Reichenbach, 1848
                     07 Genus Lissotis Reichenbach, 1848
                     08 Genus Afrotis Gray, 1855
                     09 Genus Eupodotis Lesson, 1839
                     10 Genus Sypheotides Lesson, 1839