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Abstract
Investigation of the marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and and type Bolivina obliqua Zone in California shows that the type Delmontian Stage is equivalent to part of the supposedly older Mohnian Stage and is early late Miocene. The type Bolivina obliqua Zone, which conformably overlies the type Mohnian Stage, appears to be early Pliocene.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and the type Bolivina obliqua Zone, California |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 4 |
| Issue | 3 |
| Year Published | 1976 |
| Language | English |
| Publisher | U. S. Geological Survey |
| Description | 13 p. |
| First page | 339 |
| Last page | 351 |
| Country | United States |
| State | California |
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