Briones Sandstone
| Briones Formation | |
|---|---|
| Stratigraphic range: Miocene | |
| Type | Geologic formation |
| Underlies | San Pablo Formation |
| Location | |
| Region | Contra Costa County, California |
| Country | United States |
| Type section | |
| Named for | Briones Hills |
The Briones Formation is a Late/Upper Miocene epoch geologic formation of the East Bay region in the San Francisco Bay Area, California.[1]
It is found in western Contra Costa County.[1]
It preserves fossils dating back to the Late/Upper Miocene epoch of the Neogene period.[2]
See also
- Miocene California geology
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ^ a b Google Books: "Names and Definitions of the Geologic Units of California", Issues 825-830, pg 73.
- ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 8 July 2014.
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