USGS Mesozoic M8535, Loma Prieta (Cretaceous of the United States)

Also known as 88-E-6

Where: Santa Clara County, California (37.1° N, 121.8° W)

• Paleocoordinates: 46.8° N, 83.8° W (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

When: Late/Upper Campanian (83.5 - 70.6 Ma)

• Age is poorly constrained but indicative of Late Campanian. Taxa have type locality near at Texas Flat, near Folsom, which belongs to Upper Campanian based on Baculites inornatus and B. occidentalis. Spondylus subnodosus has its type locality in the Santa Ana Mountains in Upper Campanian Metaplacenticeras pacificum zone. Baculitids found are only known from Late Campanian.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by W.P. Elder in 1988; reposited in the USNM

Primary reference: W. P. Elder. 1991. An unusual Late Cretaceous fauna from an oyster-rich interval in the Santa Cruz Mountains of California. United States Geological Survey Bulletin 1934:E1-E18 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 167702: authorized by Matthew Clapham, entered by Matthew Clapham on 29.03.2015

Creative Commons license: CC0 (CC0)

Taxonomic list

Bivalvia
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
Cephalopoda
 Ammonitida - Baculitidae
Baculites inornatus Meek 1862 ammonite
Baculites anceps Lamarck 1822 ammonite