Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.
January 1, 1987
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.
Citation Information
| Publication Year | 1987 |
|---|---|
| Title | Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia. |
| Authors | C.W. Naeser, E.H. McKee, N.M. Johnson, B.J. Macfadden |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Journal of Geology |
| Index ID | 70014103 |
| Record Source | USGS Publications Warehouse |