UCMP V99849, San Gregorio section, Half Moon Bay (Pliocene of the United States)

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)

• Upper part of the section, latest Piacenzian, just below ash bed correlated with 2.4-2.6 Ma tuff

Environment/lithology: coastal; sandstone and siltstone

• strong influence of physical processes (waves, etc.)

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 184957: authorized by Matthew Clapham, entered by Matthew Clapham on 01.04.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Lamniformes - Cetorhinidae
Cetorhinus maximus Gunner 1765 basking shark
Actinopteri
 Scombriformes - Scombridae
Thunnus sp. South 1845
Mammalia
 Cetacea - Balaenopteridae
Balaenoptera bertae n. sp. Boessenecker 2013 rorqual