Otay Formation

The Otay Formation is a geologic formation in San Diego County, California (United States) and northern Baja California state (Mexico). It is within the Peninsular Ranges province.

Otay Formation
Stratigraphic range: Oligocene-Miocene
Type	Formation
Overlies	Sweetwater Formation
Location
Region	California Baja California
Country	United States Mexico

Fossils

It preserves fossils of the Oligocene to Miocene periods of the Cenozoic Era. Fossils in the Sweetwater Formation that underlies the Otay Formation are of the Late Eocene period.

See also

• List of fossiliferous stratigraphic units in California
• Paleontology in California
• List of fossiliferous stratigraphic units in Mexico

Further reading

• "General Plan Final Program EIR: 3.11 Paleontological Resources" (PDF). City of San Diego.

External links

• Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.