After Ericson, 1996, Livezey, 1996 and Murray & Vickers-Rich, 2004

Alternative phylogeny after Dyke, 2000, 2001

<==o Anseriformes Wagler, 1831 [incl. †Dromornithiformes Fürbringer, 1888; ?†Diatrymiformes Shufeldt, 1913] (waterfowls; sorsalinnut)
   |?-o †Gastornithidae Fürbringer 1888 [Diatrymatidae Shufeldt, 1913] (diatrymit)
   |  |-- †Zhongyuanus xichuanensis Hou, 1980
   |  `--o †Gastornis Hébert, 1855 [Diatryma Cope 1876; Barornis Marsh, 1894; Omorhamphus Sinclair, 1928]
   |     |-- †G. parisiensis Hébert, 1855 [G. edwardsii Lemoine, 1878; G. klaasseni Newton, 1885] [type]
   |     |-- †G. ajax (Shufeldt 1913) [Diatryma ajax Shufeldt 1913]
   |     |-- †G. giganteus (Cope, 1876) [Diatryma gigantea Cope, 1876; Barornis regens Marsh, 1894; Omorhamphus storchii Sinclair, 1928; Omorhamphus storchi Wetmore, 1931(unjust. emend.)]
   |     |?- †G. geiselensis [Diatryma geiselensis]
   |     |-- †G. sarasini Schaub, 1929
   |     `-- †G. russeli Martin, 1992
   |--o Anhimae Wetmore & Miller, 1926 (romiskot)
   |  |-- †Chaunoides antiquus
   |  |--o Anhimidae (romiskot)
   |  |  |-- Anhima cornuta (sarviromisko)
   |  |  `--o Chauna (röyhyromiskot)
   |  |     |-- C. chavaria (kaulusromisko)
   |  |     `-- C. torquata (töyhtöromisko)
   |  `--o †Dromornithidae Fürbringer, 1888 (mihirungs; mihirungit)
   |     |?- †Dromornithidae genera et species indet.
   |     |?- †“Barawertornis” sp.
   |     |-- †Barawertornis tedfordi Rich, 1979
   |     `--+--+-- †“Ilbandornis”? lawsoni Rich, 1979
   |        |  `-- †Genyornis newtoni Sterling & Ziets, 1896
   |        `--+--+-- †“Bullockornis” sp. Rich, 1979
   |           |  `--†Ilbandornis woodburnei Rich, 1979
   |           `--+-- †Bullockornis planei Rich, 1979
   |              `--o †Dromornis Owen, 1872
   |                 |-- †D. australis Owen, 1872
   |                 `-- †D. stirtoni Rich, 1979
   `--o Anseres (sorsat)
      |--o Anseranatidae [Anseranatoidea] sensu Olson, 1999 (puuhanhet)
      |  |--o †Anatalavis (Shufeldt, 1915) Olson & Parris, 1987 [Telmatornis Shufeldt, 1915] [Anatalavinae]
      |  |  |-- †A. rex (Shufeldt, 1915) [Telmatornis rex Shufeldt, 1915]
      |  |  `-- †A. oxfordi Olson, 1999
      |  `-- Anseranas semipalmata [Anseranatinae] (puuhanhi)
      `--o Anatoidea sensu Livezey, 1997 (true waterfowls; sorsansukuiset sorsat)
         |-- †Vegavis iaai Clarke, Tambussi, Noriega, Erickson & Ketcham, 2005
         |-- †Presbyornithidae Wetmore, 1926 [= Graculavidae?]
         `--+--o †Cnemiornithidae (New Zeeland Geese; uudenseelanninhanhet)
            |  `--o †Cnemiornis Owen, 1866 (New Zeeland Geese; uudenseelanninhanhet)
            |     |-- †C. calcitrans Owen, 1866 (South Island Goose; eteläsaaren hanhi)
            |     `-- †C. gracilis Forbes, 1894 (North Island Goose; pohjoissaaren hanhi)
            `-- Anatidae (ducks, geese, swans; sorsat, hanhet, joutsenet)

Anseriformes incertae sedis:

Agnopterus laurillardi Milne-Edwards, 1869-1871
        †Proherodius oweni Lydekker, 1891 [possibly a presbyornithid]

After Dyke, 2000, 2001, and Ericson, 1996

<==o Anseriformes
   |--o Anhimae
   |  |-- †Chaunoides
   |  `--o Anhimidae
   |     |-- Anhima
   |     `-- Chauna
   `--o Anseres
      |-- Anseranas
      `--+-- †Anatalavis
         `--o Anatoidea
            |-- †Presbyornithidae
            `--+--o †Cnemiornithidae
               |  `-- †Cnemiornis
               `-- Anatidae

Reference(s):

  • Dyke, G., 2000: The fossil waterfowl (Aves: Anseriformes) from the Tertiary of England.
    –Journal of Vertebrate Paleontology: Vol. 20, #3, suppl. to #3, 39A
  • Dyke, G. J., 2001: The fossil waterfowl (Aves: Anseriformes) from the Eocene of England.
    –American Museum Novitates: #3354, pp. 1-15
  • Ericson, P. G. P. 1996: Systematic relationships of the Palaeogene family Presbyornithidae (Aves: Anseriformes).
    –Zoological Journal of the Linnean Society: vol. 121, #4, pp. 429-483

Reference(s):