After Ericson, 1996, Livezey, 1996, Dyke, 2000, 2001, and Kurochkin, Dyke & Karhu, 2002
<==o †Presbyornithidae Wetmore, 1926 [= Graculavidae?] |-- †Teviornis gobiensis Kurochkin, Dyke & Karhu, 2002, L. Cret. EAs. |-- †Telmabates antiquus |-- †Headonornis hantoniensis (Lydekker, 1891) Harrison & Walker, 1976 [Agnopterus? hantoniensis Lydekker, 1891] [may be senior synonym of Presbyornis isoni (Dyke, 2001).] `--o †Presbyornis Wetmore, 1926 |?- †P. isoni Olson, 1994 [status dubious, possibly jr. synon. of Headonornis hantoniensis] `-- †P. pervetus Wetmore, 1926
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 - Kurochkin, E. N., Dyke, G. J. & Karhu, A. A., 2002: A new presbyornithid bird (Aves, Anseriformes) from the Late Cretaceous of Southern Mongolia.
–American Museum Novitates: #3386, pp. 1-11 - Livezey, B. C. 1996: A phylogenetic classification of waterfowl (Aves: Anseriformes), including selected fossil species.
–Annals of Carnegie Museum: vol. 66, #4, pp. 457-496 - Olson, S. L. & Parris, D. C., 1987: The Cretaceous birds of New Jersey.
–Smithsonian Contributions to Paleobiology: No. 63, pp. iv-22