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Organism
  Animalia
                    Cephalaspidea
                          Bulloidea
                            Tornatinidae
      Chordata
        Vertebrata
          Gnathostomata
          Pisces
            Actinopterygii
                    Osmeriformes
                  Eupulmonata
                  Imparidentia
      Mollusca
            Bivalvia
                    Arcida
                          Arcoidea
                            Arcidae
              Autobranchia
                Heteroconchia
                Pteriomorphia
                    Limida
                          Limoidea
                            Limidae
                    Cardiida
                          Cardioidea
                            Cardiidae
                          Tellinoidea
                            Semelidae
                            Tellinidae
              Protobranchia
                    Nuculida
                          Nuculoidea
                            Nuculidae
            Gastropoda
                            Amphibolidae
              Caenogastropoda
                    Architaenioglossa
                            Ampullariidae
                            Cyclophoridae
                            Diplommatinidae
                            Neocyclotidae
                            Pupinidae
                          Viviparoidea
                            Viviparidae
                    Neogastropoda
                          Buccinoidea
                            Fasciolariidae
                          Conoidea
                          Muricoidea
                            Muricidae
                    Cycloneritida
                            Helicinidae
                            Hydrocenidae
                            Neritidae
                            Neritiliidae
                          Neritoidea
                    Ellobiida
                            Ellobiidae
              Heterobranchia
                Euthyneura
                    Littorinimorpha
                            Amnicolidae
                            Bithyniidae
                            Cochliopidae
                            Hydrobiidae
                            Littorinidae
                            Tateidae
                          Truncatelloidea
                            Assimineidae
                            Pomatiopsidae
                          Vanikoroidea
                            Eulimidae
                            Lymnaeidae
              Neritimorpha
              Patellogastropoda
                          Lottioidea
                            Acmaeidae
                            Eoacmaeidae
                            Lottiidae
                          Patelloidea
                            Patellidae
                            Physidae
                            Planorbidae
                    Stylommatophora
                            Acavidae
                      Achatinina
                            Ferussaciidae
                            Subulinidae
                          Achatinoidea
                            Achatinidae
                            Agriolimacidae
                            Anthracopupidae
                            Arionidae
                            Ariophantidae
                            Athoracophoridae
                            Bothriembryontidae
                            Bulimulidae
                            Camaenidae
                            Cerastidae
                            Chronidae
                            Clausiliidae
                            Cochlicopidae
                            Dendropupidae
                            Discidae
                                   [Gonyodiscidae]
                            Draparnaudiidae
                            Dyakiidae
                            Enidae
                            Gastrocoptidae
                            Helicidae
                      Helicina
                            Achatinellidae
                            Amastridae
                            Endodontidae
                            Euconulidae
                            Gastrodontidae
                            Helicarionidae
                            Limacidae
                            Milacidae
                            Philomycidae
                            Punctidae
                            Pupillidae
                            Succineidae
                            Vertiginidae
                            Zachrysiidae
                            Zonitidae
                            Helicodiscidae
                            Oxychilidae
                            Partulidae
                            Pristilomatidae
                          Punctoidea
                            Charopidae
                            Rhytididae
                            Sagdidae
                            Simpulopsidae
                            Spiraxidae
                            Streptaxidae
                            Strobilopsidae
                            Strophocheilidae
                            Trochomorphidae
                            Truncatellinidae
                            Urocyclidae
                            Valloniidae
                            Vitrinidae
                    Systellommatophora
                            Veronicellidae
                                   [Vaginulidae]
                            Thiaridae
            Polyplacophora
                    Chitonida
                      Acanthochitonina
                      Chitonina
                          Chitonoidea
                            Chitonidae
                          Cryptoplacoidea
                            Acanthochitonidae
              Neoloricata
                          Pupilloidea