Central Taxonomic Thesaurus
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Organism
  Animalia
         [Metazoa]
      Mollusca
            Bivalvia
                   [Conchifera]
                   [Lamellibranchiata]
                   [Pelecypoda]
              Protobranchia
                     [Palaeotaxodonta]
                     [Streptoneura]
                    Nuculanida
                          Nuculanoidea
                                 [Pristiglomoidea]
                            Phaseolidae
                                     Phaseolus
                                             Phaseolus ovatus