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Organism
  Animalia
      Echinodermata
        Echinozoa
            Echinoidea
              Euechinoidea
                Carinacea
                 Echinacea
                    Arbacioida
                            Arbaciidae
                                     Arbacia
                                             Arbacia punctulata
                                     Coelopleurus
                                             Coelopleurus floridanus