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 Dendrocygninae Reichenbach - tree-ducks
             1 Genus Dendrocygna Swainson, 1837 - wandering whistling-duck
             2 Genus Thalassornis Eyton, 1838 [monotypic]