Pamunkey River - just below Piping Tree Ferry (Eocene of the United States)

Also known as USGS Locality 26413

Where: Hanover County, Virginia (37.7° N, 77.1° W: paleocoordinates 37.6° N, 66.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Piney Point Formation (Pamunkey Group), Middle Eocene (47.8 - 37.7 Ma)

• 4 feet thick. There are exposures at places along the bluffs downriver from Piping Tree Ferry. Slumps in this area expose up to 15 feet of silty clays of the Calvert Formation overlying the Piney Point. The Old Church Formation is absent. In some exposures the Eastover Formation can be seen overlying the Calvert.

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, glauconitic, gray, green, argillaceous sandstone

• Sand, greenish-gray (5 GY 6/1), clayey, glauconitic; partially indurated, concentrations of Cubitostrea sellaeformis in thin cemented beds dipping downstream are exposed at very low water

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 60666: authorized by Arnold Miller, entered by Devin Buick on 19.05.2006, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
  -
Bivalvia
 Ostreida - Ostreidae
Cubitostrea sellaeformis Conrad 1832 oyster