Cabrillo Formation
| Cabrillo Formation Stratigraphic range: Maastrichtian stage, Late Cretaceous Epoch | |
|---|---|
| Type | Geological formation |
| Unit of | Rosario Group |
| Overlies | Point Loma Formation |
| Lithology | |
| Primary | sandstones, conglomerates |
| Location | |
| Region | North America |
| Country | United States |
| Extent |
Point Loma and Mount Soledad, San Diego County California |
| Type section | |
| Named for | Cabrillo National Monument |
| Named by | Kennedy and Moore, 1971[1] |
The Cabrillo Formation is a Maastrichtian stage geologic formation in coastal San Diego County, southern California. It is part of the Rosario Group.[2]
The Maastrichtian stage is of the Late Cretaceous Epoch, during the Mesozoic Era. It is found on the eastern and southwestern sides of the Point Loma peninsula including in Cabrillo National Monument, and on Mount Soledad, both within the city of San Diego.[2][3]
The Cabrillo Formation overlies the Point Loma Formation.
Fossils
A single tooth from the cartilaginous fish Squalicorax has been recovered from the Cabrillo Formation sediments of Cabrillo National Monument.[2][4]
See also
- Cretaceous California
- Geology of San Diego County, California
References
- ↑ Kennedy, M.P., and Moore, G.W., 1971, Stratigraphic relations of Upper Cretaceous and Eocene formations, San Diego coastal area, California: American Association of Petroleum Geologists Bulletin, v. 55, no. 5, p. 709-722. article
- 1 2 3 "Cabrillo National Park," Hunt, Santucci, and Kenworthy (2006); page 65.
- ↑ Sandiego.gov: Paleontological resources, Cabrillo Formation
- ↑ Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63–69.
| Cretaceous Period | |
|---|---|
| Lower/Early Cretaceous | Upper/Late Cretaceous |
| Berriasian | Valanginian | Hauterivian Barremian| Aptian | Albian |
Cenomanian | Turonian | Coniacian Santonian |Campanian | Maastrichtian |
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