Neornithes Gadow, 1893 - living birds
Count: [s] 23o;193f;2136g;9595s;8ss; ‡1f;26g;131s
   Neornithes Gadow, 1893 - living birds
  Count: [s] 23o;193f;2136g;9595s;8ss; ‡1f;26g;131s
     Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
    Count: [s] 23o;187f;2121g;9539s; ‡1f;26g;128s
       Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
      Count: [s] 23o;187f;2121g;9539s; ‡1f;26g;128s
         Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
        Count: [*†*] 2o;8f;129g;444s;809ss; ‡3g;8s;6ss
           Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
          Count: [*†*] 2o;8f;129g;444s;809ss; ‡3g;8s;6ss
             [Order] Galliformes Temminck, 1820 - fowl
            Count: [*†*] 5f;79g;287s;682ss; ‡1g;3s;3ss
               Family Cracidae Vigors, 1825 - chachalacas, curassows, guans
              Count: [*†*] 11g;49s;57ss; ‡1s
                 Subfamily Penelopinae Bonaparte, 1831 - guans
                Count: [*] 7g;36s;48ss
                   Genus Penelope Merrem, 1786
                  Count: [*] 15s;22ss
                     Penelope jacquacu Spix, 1825 - Spix's guan
                    Count: [*] 4ss
                       Penelope jacquacu granti Berlepsch, 1908 - green-backed guan
                      Count: -