Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Picae (C. Linnaeus, 1758) see Order Piciformes Meyer & Wolf, 1810
         Order Piciformes Meyer & Wolf, 1810 - scansorial birds
           Infraorder Ramphastides see Superfamily Ramphastoidea Vigors, 1825
             Superfamily Ramphastoidea Vigors, 1825
               Family Ramphastidae Vigors, 1825 - toucans and barbets
                 Subfamily Capitoninae - New World barbets
                   Genus Semnornis Richmond, 1900
                     1 Semnornis frantzii (P.L. Sclater, 1864) - prong-billed barbet
                     2 Semnornis ramphastinus (Jardine, 1855) - toucan barbet