living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         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
                 Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
                   Order Piciformes Meyer & Wolf, 1810 - scansorial birds
                     Suborder Galbulae Fürbringer, 1888 - puffbirds and jacamars
                       Family Capitonidae Bonaparte, 1840 - barbets
                         1 Genus Capito Vieillot, 1816
                         2 Genus Megalaima G.R. Gray, 1842
                         3 Genus Pogoniulus Lafresnaye, 1842
                         4 Genus Tricholaema J. Verreaux & E. Verreaux, 1855
                         5 Genus Lybius Hermann, 1783