USGS M2147, Green Oaks Creek (Pleistocene of the United States)

Where: San Mateo County, California (37.1° N, 122.3° W: paleocoordinates 37.1° N, 122.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• From exposure of terrace deposit. Exposed about 10-15 ft above sea level. Carved out of sandstone of the Pliocene Purisima Formation. Collections from this terrace are largely from burrows and local exposures of reworked fine fossiliferous sand.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, fine-grained, shelly/skeletal sandstone

• A Pleistocene terrace shellbed, hence transgressive.
• Fine fossiliferous sand

Size class: macrofossils

Reposited in the UCMP, USNM

Collection methods: bulk, quarrying, sieve,

• Figured material at USNM; unfigured specimens formerly at USGS Menlo Park (now UCMP)

Primary reference: W. O. Addicott. 1966. Late Pleistocene marine paleoecology and zoogeography on Central California. United States Geological Survey Professional Paper 523-C:1-27 [A. Miller/A. Hendy/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 37674: authorized by Austin Hendy, entered by Austin Hendy on 20.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Detailed and representative for macrofossil taxa
 Sessilia - Balanidae
Balanus cf. rostratus Hoek 1883 barnacle
Subspecies: Balanus rostratus alaskiensis
Balanus cf. crenatus Bruguière 1789 barnacle
 Mytilida - Mytilidae
Adula cf. diegensis Dall 1911 datemussel
 Pholadida - Pholadidae
Zirfaea pilsbryi Lowe 1931 clam
Penitella penita Conrad 1837 clam
 Cardiida - Mactridae
Tresus capax Gould 1850 clam
 Cardiida - Veneridae
"Protothaca ? staminea" = Leukoma staminea, Saxidomus giganteus, "Petricola carditoides" = Petricola (Petricola) carditoides
"Protothaca ? staminea" = Leukoma staminea Conrad 1837 venus clam
Saxidomus giganteus Deshayes 1839 venus clam
"Petricola carditoides" = Petricola (Petricola) carditoides Conrad 1837 venus clam
 Cardiida - Tellinidae
Macoma inquinata Deshayes 1855 tellin clam
 Cardiida - Cardiidae
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle
[entered as Clinocardium nuttalli]
 Solenida - Pharidae
Siliqua aff. patula Dixon 1789 clam
 Neogastropoda - Nassariidae
 Neogastropoda - Muricidae
Thais lamellosa murex snail
 Neogastropoda - Conidae
 Calyptraeoidea - Calyptraeidae
Crepidula nummaria Gould 1846 slipper shell
 Trochoidea - Trochidae