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New fossil birds from the earliest Eocene of Mongolia. (American Museum novitates, no. 3934)

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dc.contributor.author Hood, Sarah C.
dc.contributor.author Torres, Chris R.
dc.contributor.author Norell, Mark.
dc.contributor.author Clarke, Julia A.
dc.contributor.author Mongolian-American Museum Paleontological Project.
dc.date.accessioned 2019-08-07T19:48:43Z
dc.date.available 2019-08-07T19:48:43Z
dc.date.issued 2019-08-09
dc.identifier.uri http://digitallibrary.amnh.org/handle/2246/6956
dc.description 22 pages : illustrations, map ; 26 cm. en_US
dc.description.abstract Understanding of the Asian early Paleogene avifauna is limited relative to that of North American and European avifauna of the same period. While major patterns of mammalian faunal exchange among these three regions across the Paleocene/Eocene boundary have been described, much less is known about the dynamics of bird diversity over the same time interval. Here, we report bird fossils from the earliest Eocene Bumban Member of the Naranbulag Formation in central Mongolia that add to the known record from Asia from just after this boundary. Most of this material, collected by the joint American Museum of Natural History/Mongolia Academy of Sciences expeditions, is referable to a previously described taxon in Presbyornithidae (Anseriformes). However, five isolated elements are identified as comprising at least four species from at least three other major avian clades. While further inclusive phylogenetic analyses of each of these clades are necessary, the new remains represent possible earliest occurrences in Asia of these clades. The material includes a humerus and a furcula from shorebirds (Pan-Charadriiformes), a quadrate from a stem member of the flamingo-grebe lineage (Pan-Mirandornithes), and a coracoid from a stem galliform (Pangalliformes). We also report a humerus with uncertain phylogenetic affinities but with similarities to core Gruiformes. These new fossils expand our knowledge of the Asian avifauna during this time and have the potential to further inform our understanding of the early biogeography of these clades. The shorebird and flamingo-grebe material indicate that both these lineages were present in Asia by the earliest Eocene. The pan-mirandornithine quadrate provides insight into the early feeding ecology of the flamingo-grebe clade. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation.ispartofseries American Museum novitates;no.3934.
dc.subject Birds, Fossil. en_US
dc.subject Birds -- Evolution. en_US
dc.subject Paleobiogeography. en_US
dc.subject Ȯmnȯgovʹ Aĭmag (Mongolia) en_US
dc.subject Mongolia. en_US
dc.subject Asia. en_US
dc.title New fossil birds from the earliest Eocene of Mongolia. (American Museum novitates, no. 3934) en_US
dc.title.alternative Eocene fossil birds from Mongolia. en_US


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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