El Cien Formation
The El Cien Formation is a geologic formation in eastern Baja California Sur state, Mexico.[1]
| El Cien Formation | |
|---|---|
| Stratigraphic range: Oligocene-Miocene | |
| Type | Geologic formation |
| Sub-units | Cerro Colorado Mb. San Hilario Mb. Cerro Tierra Blanca Mb. |
| Location | |
| Region | Baja California Sur |
| Country | Mexico |
Subunits, from younger/higher to older/lower, include the Cerro Colorado Member, San Hilario Member, and Cerro Tierra Blanca Member.[1]
Fossil record
It preserves fossils dating back to the Oligocene epoch of the Paleogene period and Early Miocene epoch of the Neogene period, during the Cenozoic Era.[1][2]
See also
- Cenozoic Mexico
- List of fossiliferous stratigraphic units in Mexico
References
- UNAM.mx: "The El Cien Formation, Strata of Oligocene and Early Miocene Age in Baja California Sur"; Revista vol 6, no. 2, 1986; pg 145-162; National Autonomous University of Mexico, Institute of Geology.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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