Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Gruiformes Bonaparte, 1854
         Family Rallidae Vigors, 1825 - rails, waterhens, coots
           Genus Porphyrio Brisson, 1760
             Porphyrio porphyrio (Linnaeus, 1758) - purple swamphen
               Porphyrio porphyrio seistanicus Zarudny & Härms, 1911