USGS Loc. 26407 - James River [Yorktown Fm] (Pliocene of the United States)

Where: Prince George County, Virginia (37.3° N, 77.3° W: paleocoordinates 37.4° N, 76.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rushmere Member (Yorktown Formation), Late/Upper Pliocene (3.6 - 2.6 Ma)

• 4 feet thick

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, medium-grained, gray, blue sandstone

• Sand, blue-gray (5 B 5/1), member, quartz

Size class: macrofossils

Reposited in the USGS

Primary reference: L. W. Ward. 1985. Stratigraphy and Characteristic Mollusks of the Pamunkey Group (Lower Tertiary) and the Old Church Formation of the Chesapeake Group-Virginia Coastal Plain. United States Geological Survey Professional Paper (1346)1-77 [A. Miller/D. Buick]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 60667: authorized by Arnold Miller, entered by Devin Buick on 19.05.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Cardiida - Veneridae
"Mercenaria tridacnoides" = Mercenaria campechiensis tridacnoides
"Mercenaria tridacnoides" = Mercenaria campechiensis tridacnoides Lamarck 1818 quahog
 Pectinida - Pectinoidae
Chesapecten madisonius Say 1824 scallop