Robert W. Boessenecker. 2011. A New Marine Vertebrate Assemblage from the Late Neogene Purisima Formation in Central California, Part I: Fossil Sharks, Bony Fish, Birds, and Implications for the Age of the Purisma Formation West of the San Gregorio Fault.

Abstract The Miocene to Pliocene Purisima Formation crops out in multiple transform fault bounded structural blocks in central California. As a result of poor exposure, strike slip fault offset, and uncertain intraformational correlations, some exposures of the Purisima Formation are not well dated. The San Gregorio section of the Purisima Formation occurs in the Pigeon […]