Topanga Canyon Formation

Short description: Miocene epoch geologic formation in southern California, United States

Topanga Canyon Formation
Stratigraphic range: Neogene

Type| Formation
Underlies| Modelo Formation
Location
Region| Santa Monica Mountains
Los Angeles County, California
Country| United States

The Topanga Canyon Formation (/təˈpæŋɡə/ (listen)) is a Miocene epoch geologic formation in the Santa Monica Mountains, Simi Hills, Santa Ana Mountains and San Joaquin Hills, in Los Angeles County, Ventura County, and Orange County, southern California .[1] It is primarily composed of hard sandstone with some inter-bedded siltstone.

## Fossils

It preserves fossils dating back to the Miocene epoch of the Neogene period, during the Cenozoic Era.[2][3]

## See also

* Miocene California
* List of fossiliferous stratigraphic units in California
* Paleontology in California
* Santa Monica Mountains-related topics

## References

1. ↑ USGS.gov: "Preliminary Geologic Map of the Simi 7.5' Quadrangle, Southern California, A Digital Database"; Open-File Report 97-259; compiled by R.F. Yerkes and R.H. Campbell; 1997.
2. ↑ ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". http://www.fossilworks.org/cgi-bin/bridge.pl?action=home.
3. ↑ "Topanga Formation | Invertebrate Paleontology @ NHM". http://research.nhm.org/ip/topanga-formation/.

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