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Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.

Journal of Geology

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, , , and

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Abstract

Three new fission-track (zircon) and four new K-Ar (biotite) dates corroborate a late Oligocene-early Miocene age (22-28 Ma) for the Salla Beds of Bolivia. These ages contrast markedly with the previously accepted age of about 35 Ma for these strata and their contained faunas, and recasts of order and chronology of interchange between New World and Old World mammals. -Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.
Series title:
Journal of Geology
Volume
95
Issue:
6
Year Published:
1987
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Geology
First page:
825
Last page:
828
Number of Pages:
4