Pinole Tuff Formation
From Handwiki | Pinole Tuff Formation Stratigraphic range: Neogene | |
|---|---|
| Type | Geologic formation |
| Underlies | Orinda Formation, Monterey Formation Group units |
| Overlies | Neroly Formation San Pablo Formation |
| Thickness | 270 metres (890 ft) |
| Lithology | |
| Primary | Tuff, breccia |
| Location | |
| Region | Contra Costa County California |
| Country | United States |
| Type section | |
| Named for | Pinole, California |
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.
See also
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ↑ Cavender, Ted M.; Miller, Robert Rush (1972). "Smilodonichthys Rastrosus: A New Pliocene Salmonid Fish from Western United States". Bulletin of the Museum of Natural History (University of Oregon) 18.
- ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". http://www.fossilworks.org/cgi-bin/bridge.pl?action=home.
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Categories: [Geologic formations of California] [Tuff formations]
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