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Organism
  Animalia
      Chordata
        Vertebrata
          Amniota
            Aves
                    Passeriformes
                          Emberizoidea
                            Passerellidae
                                     Ammospiza
                                             Ammospiza caudacutus
                                             Ammospiza leconteii
                                             Ammospiza maritimus
                                             Ammospiza nelsoni
                                     Amphispiza
                                             Amphispiza bilineata
                                     Calamospiza
                                             Calamospiza melanocorys
                                     Centronyx
                                             Centronyx henslowii
                                     Spizelloides
                                             Spizelloides arborea