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 Platyhelminthes Gegenbaur, 1859 - flatworms
           Class Trematoda Rudolphi, 1808 - flukes see Infraclass Trematoda Rudolphi, 1808
             Subclass Digenea Carus, 1863
               Order Strigeidida
                 Suborder Brachylaimata
                   Superfamily Bucephaloidea Poche, 1907
                     Family Bucephalidae Poche, 1907
                       1 Genus Rhipidocotyle Diesing, 1858
                       2 Genus Alcicornis MacCullum, 1917
                       3 Genus Bucephaloides Hopkins, 1954
                       4 Genus Bucephalus Baer, 1826
                       5 Genus Dollfustrema Eckmann, 1934