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Organism
  Animalia
      Mollusca
            Bivalvia
              Pteriomorphia
                    Ostreida
                          Pterioidea
                            Isognomonidae
                                     Isognomon
                                             Isognomon alatus
                                             Isognomon bicolor
                                             Isognomon janus
                                             Isognomon radiatus
                                             Isognomon recognitus