Ocotillo Formation
The Ocotillo Formation is a Pliocene fluvial-alluvial fan geologic formation in the Colorado Desert of Southern California.[1]
| Ocotillo Formation | |
|---|---|
| Stratigraphic range: Pliocene | |
| Type | Geologic formation |
| Underlies | Palm Spring Formation |
| Overlies | Brawley Formation |
| Location | |
| Region | Colorado Desert, California |
| Country | United States |
| Type section | |
| Named for | Ocotillo, California |
It occurs in western Imperial County and eastern San Diego County.[2]
Geology
The formation overlies the Brawley Formation and the Palm Spring Formation. In the Mecca Hills, it is younger than 765,000 years.
Fossils
It preserves fossils and petrified wood, from the Pliocene Epoch of the Neogene Period, within Anza-Borrego Desert State Park.[1][3]
See also
- Pliocene California
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- National Park Service: "The FISH CREEK CANYON ICHNOFAUNA: a PLIOCENE (BLANCAN) Vertebrate Footprint Assemblage from Anza-Borrego Desert State Park, California"; by Paul Remeika.
- Kirby, S. M.; Janecke, S. U.; Dorsey, R. J.; Housen, B. A.; Langenheim, V. E.; McDougall, K. A.; Steely, A. N. (January 2007). "Pleistocene Brawley and Ocotillo Formations: Evidence for Initial Strike-Slip Deformation along the San Felipe and San Jacinto Fault Zones, Southern California". The Journal of Geology. 115 (1): 43–62. Bibcode:2007JG....115...43K. doi:10.1086/509248. JSTOR 509248. S2CID 128487198.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
Further reading
- Weber, F. Harold (1963). Geology and mineral resources of San Diego County, California. California Division of Mines and Geology. p. 33.
- Hoetker, Geoffrey M.; Gobalet, Kenneth W. (2 August 1999). "Fossil Razorback Sucker (Pisces: Catostomidae, Xyrauchen texanus) from SoutheasternCalifornia". Copeia. 1999 (3): 755–759. doi:10.2307/1447609. JSTOR 1447609.
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