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  Animalia
      Arthropoda
        Hexapoda
               [Apterygota]
            Insecta
              Pterygota
                Palaeoptera
                       [Paleoptera]
                    Ephemeroptera
                      Setisura
                            Pseudironidae
                                     Pseudiron
                                             Pseudiron centralis
                                                   [Pseudiron meridionalis]