Edge Rewrite
// HTMLRewriter · presentation

This page was redesigned at the edge.

Cloudflare fetched the original article and streamed it through HTMLRewriter to apply an entirely new visual system without rebuilding the source page.

// request.cf · coarse context

A page that knows where it met you.

Only coarse request metadata is shown. This demo does not display or persist visitor IP addresses.

Country
US
Cloudflare location
CMH
Connection
HTTP/2
Language
Not provided

Ray ID: a23101032da71709

Jump to content

Topanga Canyon Formation

From Wikipedia, the free encyclopedia
(Redirected from Topanga Formation)
Topanga Canyon Formation
Stratigraphic range: Neogene
TypeFormation
UnderliesModelo Formation
Location
RegionSanta Monica Mountains
Los Angeles County, California
CountryUnited 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.

Fossils

[edit]

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

See also

[edit]

References

[edit]
  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". Retrieved 17 December 2021.
  3. "Topanga Formation | Invertebrate Paleontology @ NHM".