Central Taxonomic Thesaurus
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Organism
  Animalia
         [Metazoa]
      Echinodermata
             [Eleutherozoa]
             [Pelmatoza]
             [Pelmatozoa]
        Crinozoa
            Crinoidea
                   [Eucrinoidea]
              Articulata
                    Comatulida
                           [Comatulidina]
                      Bourgueticrinina
                            Rhizocrinidae
                                     Cherbonniericrinus
                                     Conocrinus