The Cabrillo Formation is a Maastrichtian stage geologic formation in coastal San Diego County, southern California. It is part of the Rosario Group."Cabrillo National Park," Hunt, Santucci, and Kenworthy (2006); page 65. The Maastrichtian stage is of the Late Cretaceous Epoch, during the Mesozoic Era.
The formation 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.
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.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.
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