High-level strata containing early Miocene mammals on the Bighorn Mountains, Wyoming. American Museum novitates ; no. 2490

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dc.contributor.authorMcKenna, Malcolm C.en_US
dc.contributor.authorLove, J. D. (John David), 1913-en_US
dc.contributor.authorDarton, Nelson Horatio, 1865-1948.en_US
dc.date.accessioned2005-10-06T16:34:40Z
dc.date.available2005-10-06T16:34:40Z
dc.date.issued1972en_US
dc.description31 p. : ill., maps ; 24 cm.en_US
dc.descriptionIncludes bibliographical references (p. 29-31).en_US
dc.description.abstract"Fossil mammals of early Miocene age have been found in strata composing Darton's Bluff on the crest of the Bighorn Mountains in the Hazelton Peak Quadrangle, Johnson County, Wyoming. Dating the host strata provides a reference datum for the reconstruction of regional sedimentation during early Miocene time and for determination of the maximum age of epeirogenic uplift. As a result of regional aggradation, the Bighorn Basin was filled with sediments. These buried the rugged peaks and canyons of the Bighorn Mountains up to a level corresponding to the present 9000-foot altitude during early Miocene time. The lower Miocene and older rocks are beveled by the subsummit surface, a remarkably flat and even surface of Miocene or Pliocene age. Excavation of the Bighorn and Powder River basins and exhumation of the Bighorn Mountains must have been accomplished during the relatively short interval of late Cenozoic time after the subsummit surface was cut"--P. [1].en_US
dc.format.extent5845995 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2246/2698
dc.languageengen_US
dc.language.isoen_US
dc.publisherNew York, N.Y. : American Museum of Natural Historyen_US
dc.relation.ispartofseriesAmerican Museum novitates ; no. 2490en_US
dc.subject.lccQL1 .A436 no.2490, 1972en_US
dc.subject.lcshMammals, Fossil -- Wyoming -- Johnson County.en_US
dc.subject.lcshMammals, Fossil -- Bighorn Mountains (Wyo. and Mont.)en_US
dc.subject.lcshPaleontology -- Miocene -- Wyoming -- Johnson County.en_US
dc.subject.lcshPaleontology -- Miocene -- Bighorn Mountains (Wyo. and Mont.)en_US
dc.subject.lcshPaleontology -- Wyoming -- Johnson County.en_US
dc.subject.lcshPaleontology -- Bighorn Mountains (Wyo. and Mont.)en_US
dc.subject.lcshGeology, Stratigraphic -- Miocene -- Wyoming -- Johnson County.en_US
dc.subject.lcshGeology, Stratigraphic -- Miocene -- Bighorn Mountains (Wyo. and Mont.)en_US
dc.subject.lcshGeology -- Wyoming -- Johnson County.en_US
dc.subject.lcshGeology -- Bighorn Mountains (Wyo. and Mont.)en_US
dc.titleHigh-level strata containing early Miocene mammals on the Bighorn Mountains, Wyoming. American Museum novitates ; no. 2490en_US
dc.title.alternativeEarly Miocene mammalsen_US
dc.typetexten_US

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