Chatsworth Formation

The Chatsworth Formation is a Cretaceous period sandstone geologic formation in the Simi Hills and western Santa Susana Mountains of southern California.

It is found in western Los Angeles County and eastern Ventura County.  The  formation's thickness can be more than .

Fossils
The sedimentary marine formation preserves fossils dating from the Middle Campanian to Early Maestrichtian epochs of the Cretaceous period. It has diverse molluscan faunas.

The most common taxa are:
ringiculid Biplica 
naticids Gyrodes and Euspira
trocid Atira
aporrhaids Anchuras and Lispodesthes
turritellid Turritella
perissityid Perissitys

See also

 Stoney Point (California) — Chatsworth Formation landmark.
 
 
 List of fossiliferous stratigraphic units in California
 Paleontology in California

References

Category:Cretaceous California
Category:Sandstone formations of the United States
Category:Campanian Stage
Category:Maastrichtian Stage of North America
Category:Geology of Los Angeles County, California
Category:Geology of Ventura County, California
Category:Simi Hills
Category:Santa Susana Mountains
Category:Cretaceous fossil record
Category:Upper Cretaceous Series of North America
Category:Paleontology in California
Category:Chatsworth, Los Angeles
Category:Geography of Simi Valley, California
Category:West Hills, Los Angeles
Category:Geologic formations of California