Plum Point, Zone 9 (Miocene of the United States)
Where: Calvert County, Maryland (38.6° N, 76.5° W: paleocoordinates 38.8° N, 72.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Plum Point Member (Calvert Formation), Burdigalian (20.4 - 16.0 Ma)
Environment/lithology: marine; green, sandy claystone
• greenish sandy clay
Primary reference: G. B. Shattuck. 1904. Geological and paleontological relations, with a review of earlier investigations. Maryland Geological Survey Miocene Text xxxiii-clv [M. Uhen/M. Uhen] more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 70817: authorized by Mark Uhen, entered by Mark Uhen on 09.04.2007