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Mammalian Faunal Zones of the Bridger Middle Eocene

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dc.contributor.author Lewis Gazin, C. en
dc.date.accessioned 2007-07-31T16:33:18Z
dc.date.available 2007-07-31T16:33:18Z
dc.date.issued 1976
dc.identifier.citation Lewis Gazin, C. 1976. "<a href="http%3A%2F%2Fdx.doi.org%2F10.5479%2Fsi.00810266.26.1">Mammalian Faunal Zones of the Bridger Middle Eocene</a>." <em>Smithsonian Contributions to Paleobiology</em>. 1&ndash;25. <a href="https://doi.org/10.5479/si.00810266.26.1">https://doi.org/10.5479/si.00810266.26.1</a> en
dc.identifier.issn 0081-0266
dc.identifier.uri http://hdl.handle.net/10088/1955
dc.identifier.uri http://dx.doi.org/10.5479/si.00810266.26.1
dc.description.abstract The zoning arrangement of the Bridger Middle Eocene as defined by W. D. Matthew in his 1909 monograph on the Carnivora and Insectivora of the Bridger Basin included a series of stratigraphic units lettered from A to E. The type section is in the western part of the basin but correlation of the sequence in the eastern part of the basin erred in that a very large area shown by Matthew as C, or upper Bridger, is actually B, or lower Bridger. As a consequence many of the mammalian remains collected in the eastern part of the basin were attributed to the wrong horizon. This was discovered in my faunal studies and verified by Wilmot Bradley&amp;apos;s mapping of the Sage Creek White Layer, which is the base of Bridger C or upper Bridger.<br/>A faunal list of the Mammalia recognized in the Bridger is given with type localities and their horizons, so far as known, and the number of specimens in the National Museum of Natural History collections from each of the two divisions, lower and upper. Following this a discussion of species is given in which the evidence for any species being restricted to one or the other of the stratigraphic divisions is cited, or such information demonstrating its occurrence in both levels, if this is not indicated by the National Museum of Natural History collections (under the catalog numbers of the old United States National Museum).<br/>The Annotated Bibliography includes references to all papers in which recognized new mammalian families, genera, and species included in the Bridger faunas are described. Also included are papers in which stratigraphic and additional or detailed information on Bridger mammals is provided, with notations as to extent of coverage, and possible errors of detail or interpretation in certain cases. en
dc.format.extent 10059757 bytes
dc.format.extent 1454981 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof Smithsonian Contributions to Paleobiology en
dc.title Mammalian Faunal Zones of the Bridger Middle Eocene en
dc.type Journal Article en
dc.identifier.srbnumber 113431
dc.identifier.eISSN 1943-6688
dc.identifier.doi 10.5479/si.00810266.26.1
rft.jtitle Smithsonian Contributions to Paleobiology
rft.issue 26
rft.spage 1
rft.epage 25
dc.description.SIUnit SISP en
dc.citation.spage 1
dc.citation.epage 25
dc.relation.url http://dx.doi.org/10.5479/si.00810266.26.1


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