Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Coraciiformes Forbes, 1884 - rollerlike birds
         Family Bucerotidae Vigors - hornbills
           Genus Bycanistes Cabanis & Heine, 1859-1860[1860]
             1 Bycanistes fistulator (Cassin, 1852)
             2 Bycanistes bucinator (Temminck, 1824)
             3 Bycanistes cylindricus (Temminck, 1831)
             4 Bycanistes subcylindricus (P.L. Sclater, 1870)
             5 Bycanistes brevis Friedmann, 1929