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Organism
  Chromista
      Ochrophyta
        Khakista
            Bacillariophyceae
              Bacillariophycidae
                  Bacillariophycanae
                    Bacillariales
                            Bacillariaceae
                                     Nitzschia
                                             Nitzschia granulata
                                             Nitzschia obtusa
                                             Nitzschia pulcherrima
  Protista
      Bacillariophyta
            Bacillariophyceae
                    Bacillariales
                            Bacillariaceae
                                     Nitzschia
                                             Nitzschia graeffii
                                             Nitzschia insignis
                                             Nitzschia levidensis
                                             Nitzschia longissima
                                             Nitzschia panduriformis
                                             Nitzschia scalpelliformes
                                             Nitzschia scalpelliformis
                                             Nitzschia ventricosa
                                     Pseudo-nitzschia
                                             Pseudo-nitzschia brasiliana