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New material of Alagomyidae (Mammalia, Glires) from the late Paleocene Subeng locality, Inner Mongolia ; American Museum novitates, no. 3597

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dc.contributor.author Meng, Jin (Paleontologist) en_US
dc.contributor.author Ni, Xijun. en_US
dc.contributor.author Li, Chuan-Kuei en_US
dc.contributor.author Beard, K. Christopher. en_US
dc.contributor.author Gebo, Daniel Lee, 1955- en_US
dc.contributor.author Wang, Yuan-qing. en_US
dc.contributor.author Wang, Hongjiang. en_US
dc.date.accessioned 2007-12-18T17:39:33Z
dc.date.available 2007-12-18T17:39:33Z
dc.date.issued 2007 en_US
dc.identifier.uri http://hdl.handle.net/2246/5893
dc.description 29 p. : ill. ; 26 cm. en_US
dc.description Includes bibliographical references (p. 26-29). en_US
dc.description.abstract Newly discovered specimens of alagomyids, mostly isolated teeth collected by screenwashing at the Gashatan (late Paleocene) Subeng locality in Inner Mongolia, document considerable intraspecific variation in Tribosphenomys minutus that has not been appreciated previously because of limited sample sizes. P4s of Tribosphenomys are described for the first time, which helps to clarify the posterior premolar identification of alagomyids. Some of the alagomyid specimens are referred to Tribosphenomys cf. T. secundus and Neimengomys qii gen. and sp. nov. Based on the new data, Tribosphenomys borealis from the Bumban Member of the Naran Bulak Formation, Mongolia, is considered to be a junior synonym of Alagomys inopinatus, and T. tertius from the Zhigden Member of the Naran Bulak Formation is regarded as a junior synonymof T. minutus. Alagomyidae, consisting of Tribosphenomys, Alagomys and Neimengomys, is maintained as a valid family. The presence of a diversity of alagomyids and other recently obtained fossils and stratigraphic evidence from the Erlian Basin suggest that the Gashatan and Bumbanian of Asia are probably correlative to the late Tiffanian-early Wasachian of North America. The faunal turnover during the Gashatan and Bumbanian in Asia is probably related to the late Paleocene-early Eocene global warming, but current evidence is insufficient to link any specific event with the Paleocene-Eocene Thermal Maximum. en_US
dc.format.extent 13082744 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. 3597 en_US
dc.subject.lcc QL1 .A436 no.3597, 2007 en_US
dc.subject.lcsh Alagomyidae -- China -- Inner Mongolia. en_US
dc.subject.lcsh Alagomyidae -- China -- Erlani Basin. en_US
dc.subject.lcsh Mammals, Fossil -- China -- Inner Mongolia. en_US
dc.subject.lcsh Mammals, Fossil -- China -- Erlani Basin. en_US
dc.subject.lcsh Paleontology -- Paleocene -- China -- Inner Mongolia. en_US
dc.subject.lcsh Paleontology -- Paleocene -- China -- Erlani Basin. en_US
dc.subject.lcsh Paleontology -- China -- Inner Mongolia. en_US
dc.subject.lcsh Paleontology -- China -- Erlani Basin. en_US
dc.title New material of Alagomyidae (Mammalia, Glires) from the late Paleocene Subeng locality, Inner Mongolia ; American Museum novitates, no. 3597 en_US
dc.title.alternative New material of alagomyids 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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