George Washington Birthplace National Monument, Zone 10 (Miocene of the United States)

Also known as Wakefield National Park

Where: Westmoreland County, Virginia (38.2° N, 76.9° W: paleocoordinates 38.4° N, 73.7° W)

• coordinate stated in text

When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.8 Ma)

Environment/lithology: estuary or bay; sandy claystone

• sparse molluscs, low in diversity; subtropical environment in embayment and dry onshore; area not far from shore

Size class: macrofossils

Preservation: original phosphate

Primary reference: S. J. Godfrey and O. Lambert. 2023. Miocene Toothed Whales (Odontoceti) from Calvert Cliffs, Atlantic Coastal Plain, USA. Smithsonian Contributions to Paleobiology 107:29-186 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 231782: authorized by Mark Uhen, entered by Mark Uhen on 08.09.2023

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Cetacea -
Enigmatocetus posidoni n. gen. n. sp.
Enigmatocetus posidoni n. gen. n. sp. Godfrey and Lambert 2023 toothed whale
holotype USNM PAL 244524