Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Anseriformes Wagler, 1831 - waterfowl and screamers
         Family Anatidae Vigors, 1825 - ducks, geese, swans
           Subfamily Anatinae Vigors, 1825 - pond ducks
             Genus Amazonetta Boetticher, 1929 [monotypic]
               Amazonetta brasiliensis (Gmelin, 1789) - Brazilian teal
                 1 Amazonetta brasiliensis brasiliensis (Gmelin, 1789)
                 2 Amazonetta brasiliensis ipecutiri (Vieillot, 1816)