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Organism
  Animalia
      Chordata
        Vertebrata
          Amniota
            Reptilia
                    Squamata
                          Diploglossa
                            Anguidae
                              Anguinae
                                     Anguis
                                             Anguis fragilis
                                     Pseudopus
                                             Pseudopus apodus
                              Gerrhonotinae
                                     Elgaria
                                             Elgaria kingii
                                               Elgaria kingii kingii
                                     Gerrhonotus
                                     Ophisaurus
                                             Ophisaurus attenuatus
                                               Ophisaurus attenuatus longicaudus
                                             Ophisaurus compressus
                                             Ophisaurus mimicus
                                             Ophisaurus ventralis