Gastropoda
      Caenogastropoda
                  Architaenioglossa
                              Cyclophoroidea
                                    Aciculidae
                                    Cyclophoridae
                                    Diplommatinidae
                                    Liareidae
                                    Maizaniidae
                                    Megalomastomatidae
                                    Neocyclotidae
                                    Pupinidae