Where: San Mateo County, California (37.3° N, 122.4° W: paleocoordinates 37.1° N, 121.5° W)
• coordinate based on nearby landmark
When: Purisima Formation, Piacenzian (3.6 - 2.6 Ma)
• Lower Piacenzian, above volcanic ash with 3.3-3.4 Ma tephrochronology age
Environment/lithology: coastal; sandstone and siltstone
Size class: macrofossils
Reposited in the UCMP
Primary reference: R. 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 Purisimia Formation west of the San Gregorio Fault. PalArch's Journal of Vertebrate Palaeontology 8(4):1-30 [M. Uhen/M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 117472: authorized by Mark Uhen, entered by Mark Uhen on 22.09.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Pristiophorus sp. Bleeker 1859 saw shark | |
"Raja cf. binoculata" = Beringraja binoculata
"Raja cf. binoculata" = Beringraja binoculata Girard 1855 skate | |
Mammalia | |
Phocoenidae indet. Gray 1825 porpoise |