Type Formation | Country United States | |
Region Los Angeles County and Ventura County, California Extent Simi Hills, Santa Susana Mountains | ||
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 610 metres (2,000 ft).
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:
References
Chatsworth Formation Wikipedia(Text) CC BY-SA