Presbyornis and the origin of the Anseriformes (Aves: Charadriomorphae) [by] Storrs L. Olson and Alan Feduccia.

By: Olson, Storrs LContributor(s): Feduccia, AlanMaterial type: TextTextReference number:6223082Series: Smithsonian contributions to zoology ; no. 323.Publication details: Washington, Smithsonian Institution Press, 1980. Description: iii, 24 p. illus. 26 cmSubject(s): Anseriformes -- Evolution | Presbyornis -- Evolution | Birds -- Evolution
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