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Pinole Tuff Formation
Geologic formation in California, United States From Wikipedia, the free encyclopedia
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The Pinole Tuff Formation is a geologic formation of the East Bay region of the San Francisco Bay Area in California.
It is found near Pinole and Rodeo area at San Pablo Bay and the Briones Hills of western Contra Costa County.
- Fossils
It preserves fossils, including Oncorhynchus rastrosus[1] and fragments of a proto-hipparion prehistoric horse, dating back to the Neogene period.
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References
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