Where: Westmoreland County, Virginia (38.2° N, 77.0° W: paleocoordinates 38.2° N, 64.8° W)

• coordinate stated in text

• hand sample-level geographic resolution

When: Nanjemoy Formation, Eocene (56.0 - 33.9 Ma)

• The wellhead was at an elevation of 54.85 m above sea level; depth refers to depths below the wellhead.

Environment/lithology: offshore shelf; green, argillaceous sandstone and claystone

Size class: microfossils

Preservation: original sporopollenin

Collected by U.S. Army Corps of Engineers; reposited in the USGS

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

• Stratigraphic test bored by the U.S. Army Corps of Engineers, under contract to the U.S. Geological Survey, in 1976. Samples were prepared by means of standard acid maceration as well as by swirling and (or) ZnBr2 separation. Specimens are located at the U.S. Geological Survey, Reston, Virginia.

Primary reference: N. O. Frederiksen. 1979. Paleogene Sporomorph Biostratigraphy, Northeastern Virginia. Palynology 3:129-167 [P. Jardine/H. Morck]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 233012: authorized by Phillip Jardine, entered by Hannah Morck on 10.01.2024

Creative Commons license: CC BY (attribution)