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
TypeGeologic formation
Sub-unitsCerro Colorado Mb.
San Hilario Mb.
Cerro Tierra Blanca Mb.
Location
RegionBaja California Sur
CountryMexico

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

References

  1. 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.
  2. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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