Plathelminthes see [unranked] Platyhelminthes Gegenbaur, 1859
Status: extant; Count: -
   Euplathelminthes see [unranked] Rhabditophora Ehlers, 1985
  Status: extant; Count: -
     Rhabditophora Ehlers, 1985 see Subphylum Rhabditophora Ehlers, 1985
    Status: extant; Count: -
       Trepaxonemata see [unranked] Rhabditophora Ehlers, 1985
      Status: extant; Count: -
         Neoophora see Class Neoophora
        Status: extant; Count: -
           Rhabdocoela Meixner, 1925 see Infraclass Rhabdocoela Ehrenberg, 1831
          Status: extant; Count: -
             Doliopharyngiophora see [unranked] Rhabdocoela Meixner, 1925
            Status: extant; Count: -
               [Udonellida] see [unranked] Dalyellioidea
              Status: extant; Count: -