Central Taxonomic Thesaurus
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Organism
  Animalia
         [Metazoa]
      Bryozoa
             [Ectoprocta]
            Gymnolaemata
                    Cheilostomatida
                      Flustrina
                             [Ascophorina]
                             [Neocheilostomatina]
                          Calloporoidea
                            Pyrisinellidae
                                     Microblestrum
                                     Planospinella
                                     Ristedtia
                                     Stolomicropora