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 Galliformes Temminck, 1820 - fowl
                   Suborder Galli see Order Galliformes Temminck, 1820
                     Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
                       Tribe Penelopini see Subfamily Penelopinae Bonaparte, 1831
                         Genus Ortalis Merrem, 1786
                           1 Ortalis ruficauda Jardine, 1847 - rufous-vented chachalaca
                           2 Ortalis garrula (Humboldt, 1805) - chestnut-winged chachalaca
                           3 Ortalis vetula (Wagler, 1830) - plain chachalaca