Tejon Formation Stratigraphic range: Paleogene |
|
---|---|
Type | Formation |
Underlies | Ione Formation (regionally) |
Overlies |
Martinez Formation (regionally), Chico Formation (regionally) |
Thickness | 2,100–2,300 feet (640–700 m) |
Lithology | |
Primary | conglomerate, shale |
Location | |
Region | California |
Country | United States |
Type section | |
Named for | Fort Tejon |
The Tejon Formation is a Paleogene period geologic formation in California.
The formation regionally overlies the Martinez Formation or the Chico Formation. Paleontology in the Tejon Formation indicates a more tropical climate than during the Martinez Formation's period, with fauna that flourished in its littoral conditions.
It is predominantly found in the Fort Tejon area of the San Emigdio Mountains and Tehachapi Mountains in Kern County, and around Martinez in Contra Costa County.
Areas it surfaces, south to north, include:
It preserves prehistoric plant and fauna fossils dating back to the Paleogene period of the Cenozoic Era.
Species (1897 taxa names) found only in the Tejon Formation include: