| | Galloanserae: A Critical Examination - EvoWiki (Site not responding. Last check: 2007-11-06) |
 | | Olson and Feduccia (1980a) extensively reviewed the evolution of filter feeding in birds and were able to project a coherent pseudophylogeny both for the derivation of filter feeding trophic specializations in flamingos (Phoenicopteridae) and Anseriformes from a hypothetical shorebird ancestor with cranial anatomy and kinetics similar to that of the extant phalaropes. |
 | | Presbyornis was initially interpreted as a flamingo-like wader implicated in the origins of the Phoenicopteridae (e.g., Feduccia and McGrew 1974) though this hypothesis was revised upon the recovery of multiple presbyornithid crania, which are strikingly anserine in appearance, down to a typically duck-like bill. |
 | | Feduccia (1976) concluded that Presbyornis was a long-legged wader with the postcranium of a shorebird and the head of a duck--a veritable icon of an evolutionary intermediate. |
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