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
             01 Genus Malacorhynchus Swainson, 1831 [monotypic] - pink-eared duck
             02 Genus Salvadorina Rothschild & Hartert, 1894 [monotypic]
             03 Genus Cairina Fleming, 1822 [monotypic]
             04 Genus Asacornis Salvadori, 1895 [monotypic] see Genus Asarcornis Salvadori, 1895
             05 Genus Pteronetta Salvadori, 1895 [monotypic]
             06 Genus Aix Boie, 1828
             07 Genus Chenonetta Brandt, 1836 [monotypic] - maned duck
             08 Genus Nettapus Brandt, 1836 - green pygmy-goose
             09 Genus Amazonetta Boetticher, 1929 [monotypic]
             10 Genus Callonetta Delacour, 1936 [monotypic]
             11 Genus Lophonetta Riley, 1914 [monotypic]
             12 Genus Speculanas Boetticher, 1929 [monotypic]
             13 Genus Anas Linnaeus, 1758 - Pacific black duck
             14 Genus Marmaronetta Reichenbach, 1853 [monotypic]
             15 Genus ‡?Rhodonessa Reichenbach, 1853 [monotypic]
             16 Genus Netta Kaup, 1829
             17 Genus Aythya Boie, 1822 - hardhead
             18 Genus Polysticta Eyton, 1836 [monotypic]
             19 Genus Somateria Leach, 1819
             20 Genus Histrionicus Lesson, 1828 [monotypic]
             21 Genus ‡Camptorhynchus Bonaparte, 1838 [monotypic]
             22 Genus Melanitta Boie, 1822
             23 Genus Clangula Leach, 1819 [monotypic]
             24 Genus Bucephala Baird, 1858
             25 Genus Mergellus Selby, 1840 [monotypic]
             26 Genus Lophodytes Reichenbach, 1853 [monotypic]
             27 Genus Mergus Linnaeus, 1758
             28 Genus Heteronetta Salvadori, 1865 [monotypic]
             29 Genus Nomonyx Ridgway, 1880 [monotypic]
             30 Genus Oxyura Bonaparte, 1828 - blue-billed duck
             31 Genus Biziura Stephens, 1824 [monotypic] - musk duck