[Kingdom] Animalia Linnaeus, 1758 - animals
   Grade Enterozoa
     Grade Cœlomata
       Phylum Platyelmia
         Branch Suctoria
           Class Cestoidea - cestodes, tapeworms
             1 Order Caryophyllidea Lankester, 1877
             2 Order Tetraphyllidea Lankester, 1877
             3 Order Diphyllidea Lankester, 1877
             4 Order Pseudophyllidea Lankester, 1877
             5 Order Cyclophyllidea Lankester, 1877