[Class] Cestoda - tapeworms see Infraclass Cestoda
   Order Gyrocotylidea Poche, 1926 [monotypic]
     Family Gyrocotylidae Benham, 1901 [monotypic]
       Genus Gyrocotyle Diesing, 1850
         01 Gyrocotyle rugosaᵀ Diesing, 1850
         02 Gyrocotyle abyssicola van der Land & Templeman, 1968
         03 Gyrocotyle confusa van der Land & Dienske, 1968
         04 Gyrocotyle fimbriata Watson, 1911
         05 Gyrocotyle major van der Land & Templeman, 1968
         06 Gyrocotyle maxima MacDonagh, 1927
         07 Gyrocotyle nigrosetosa Haswell, 1902
         08 Gyrocotyle nybelini (Fuhrmann, 1930)
         09 Gyrocotyle parvispinosa Lynch, 1945
         10 Gyrocotyle urna (Grube & Wagener, 1852)
         11 Gyrocotyle medusarum Linstow, 1903, incertae sedis