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Discovery of the first early Cenozoic euprimate (Mammalia) from Inner Mongolia ; American Museum novitates, no. 3571

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dc.contributor.author Ni, Xijun. en_US
dc.contributor.author Beard, K. Christopher. en_US
dc.contributor.author Meng, Jin (Paleontologist) en_US
dc.contributor.author Wang, Yuan-qing. en_US
dc.contributor.author Gebo, Daniel Lee, 1955- en_US
dc.date.accessioned 2007-05-24T17:23:15Z
dc.date.available 2007-05-24T17:23:15Z
dc.date.issued 2007 en_US
dc.identifier.uri http://hdl.handle.net/2246/5862
dc.description 11 p. : ill. ; 26 cm. en_US
dc.description Includes bibliographical references (p. 10-11). en_US
dc.description.abstract Although it is widely thought that euprimates originated in Asia, the fossil record of early euprimates remains sparse there. We describe herein a new omomyid euprimate, Baataromomys ulaanus, n. gen. et sp., based on an isolated right lower m2 from Bumbanian strata at Wulanboerhe in the Erlian Basin of Inner Mongolia, China. In terms of the size and proportions of m2, Baataromomys ulaanus is intermediate between Eurasian and North American species that are usually assigned to Teilhardina. Morphologically, m2 of Baataromomys differs from that of Teilhardina and North American small-bodied omomyids (including Anemorhysis, Tetonoides, Trogolemur, and Sphacorhysis) in having a smaller paraconid that is less fully connate with the metaconid, a lower entoconid, a weaker crest connecting the metaconid with the entoconid, and a weaker buccal cingulid. The new taxon is much smaller and lower crowned than Steinius, a genus commonly regarded as a basal omomyid. Despite the substantial difference in size, the m2s of Baataromomys and Steinius share some important features, including a very broad talonid basin and a relatively low hypoconid and cristid obliqua. Given its early occurrence and primitive anatomy, Baataromomys may eventually help to clarify the phylogenetic relationships among basalomomyids, but more complete specimens will be required to test this possibility. Baataromomys brandti from the basal Wasatchian zone Wa-0 in the northern Bighorn Basin, Wyoming, was previously allocated to Teilhardina. However, several dental features shared by B. brandti and B. ulaanus suggest that they are closely related. The co-occurrence of Baataromomys in Asia and North America indicates that small-bodied euprimates were able to dispersal across the Beringian region near the Paleocene-Eocene boundary. en_US
dc.format.extent 524126 bytes
dc.format.mimetype application/pdf
dc.language eng en_US
dc.language.iso en_US
dc.publisher New York, NY : American Museum of Natural History en_US
dc.relation.ispartofseries American Museum novitates, no. 3571 en_US
dc.subject.lcc QL1 .A436 no.3571, 2007 en_US
dc.subject.lcsh Baataromomys ulaanus. en_US
dc.subject.lcsh Primates, Fossil -- Geographical distribution en_US
dc.subject.lcsh Primates -- Dispersal -- Bering Land Bridge. en_US
dc.subject.lcsh Omomyidae -- Phylogeny. en_US
dc.subject.lcsh Mammals, Fossil -- China -- Erlani Basin. en_US
dc.subject.lcsh Mammals, Fossil -- China -- Inner Mongolia. en_US
dc.subject.lcsh Paleontology -- Paleogene -- China -- Erlani Basin. en_US
dc.subject.lcsh Paleontology -- Paleogene -- China -- Inner Mongolia. en_US
dc.subject.lcsh Paleontology -- China -- Erlani Basin. en_US
dc.subject.lcsh Paleontology -- China -- Inner Mongolia. en_US
dc.title Discovery of the first early Cenozoic euprimate (Mammalia) from Inner Mongolia ; American Museum novitates, no. 3571 en_US
dc.title.alternative Asian Cenozoic euprimate en_US
dc.type text 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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