State Penitentiary (Miocene of the United States)

Where: Richmond County, Virginia (37.5° N, 77.4° W: paleocoordinates 37.7° N, 74.6° W)

• coordinate estimated from map

When: Calvert Beach Member (Calvert Formation), Serravallian (13.8 - 11.6 Ma)

• Zones 14-16A are regarded as Serravallian in age.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; sandstone

Size class: macrofossils

Preservation: original phosphate

Primary reference: J. Wyman. 1850. Notice of remains of vertebrated animals found at Richmond, Virginia. American Journal of Science and Arts 10(29):228-235 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 57113: authorized by Mark Uhen, entered by Mark Uhen on 02.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Carnivora - Phocidae
Phocidae indet. Gray 1821 seal
 Cetacea - Squalodontidae
Squalodon sp. Grateloup 1840 toothed whale