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 Pardirallus Bonaparte, 1856
             Pardirallus sanguinolentus (Swainson, 1838) - plumbeous rail
               1 Pardirallus sanguinolentus simonsi Chubb, 1917
               2 Pardirallus sanguinolentus tschudii Chubb, 1919
               3 Pardirallus sanguinolentus zelebori (Pelzeln, 1865)
               4 Pardirallus sanguinolentus sanguinolentus (Swainson, 1838)
               5 Pardirallus sanguinolentus landbecki (Hellmayr, 1932)
               6 Pardirallus sanguinolentus luridus (Peale, 1848)