Topanga_Formation

Topanga Canyon Formation

Topanga Canyon Formation

Miocene epoch geologic formation in southern California, United States

The Topanga Canyon Formation (/təˈpæŋɡə/ ⓘ) 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.

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Fossils

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

See also

References

  1. [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. [2]
    Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
  3. [3]
    "Topanga Formation | Invertebrate Paleontology @ NHM".


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