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 Cestoda - tapeworms see Infraclass Cestoda
             Subclass Eucestoda - eucestodes see [unranked] Eucestoda
               Order Tetraphyllidea Lankester, 1877
                 1 Family Dioecotaeniidae Schmidt, 1969
                 2 Family Triloculariidae Yamaguti, 1959 see Family Phyllobothriidae Braun, 1900
                 3 Family Phyllobothriidae Braun, 1900
                 4 Family Oncobothriidae see Family Onchobothriidae Braun, 1900