Order Coraciiformes Forbes, 1884 - rollerlike birds
   Suborder Bucerotes Fürbringer, 1888 - hornbills
     Family Bucerotidae Vigors - hornbills
       1 Genus †Geiseloceros Lambrecht, 1935
       2 Genus †Cryptornis Milne-Edwards, 1869-1871[1870]
       3 Genus †Homalopus Milne-Edwards, 1869-1871[1870]