Gravatt's Mill, near Hanover Court House (Miocene of the United States)
Also known as Gravett's Mill Pond
Where: King William County, Virginia (37.8° N, 77.4° W: paleocoordinates 38.0° N, 73.5° W)
• coordinate estimated from map
When: Calvert Formation (Chesapeake Group), Burdigalian (20.4 - 16.0 Ma)
• lower Calvert Formation
Environment/lithology: coastal; phosphatic marl
• wet phosphatic marl
Size class: macrofossils
Primary reference: E. Wijnker and S. L. Olson. 2009. A revision of the fossil genus Miocepphus and other Miocene Alcidae (Aves: Charadriiformes) of the western North Atlantic Ocean. Journal of Systematic Palaeontology 7(4):471-487 [M. Uhen/M. Uhen/M. Uhen] more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 89549: authorized by Mark Uhen, entered by Mark Uhen on 01.06.2009