Plathelminthes see [unranked] Platyhelminthes Gegenbaur, 1859
   Euplathelminthes see [unranked] Rhabditophora Ehlers, 1985
     Rhabditophora Ehlers, 1985 see Subphylum Rhabditophora Ehlers, 1985
       Trepaxonemata see [unranked] Rhabditophora Ehlers, 1985
         Neoophora see Class Neoophora
           1 Lecithoepitheliata Reisinger, 1924 see Order Lecithoepitheliata
           2.1 Prolecithophora Karling, 1940 see Order Prolecithophora Karling, 1940
           2.2.1 Seriata Bresslau, 1933 see Order Seriata
           2.2.2 Rhabdocoela Meixner, 1925 see Infraclass Rhabdocoela Ehrenberg, 1831