Popes Creek south, Zone 1 (Miocene of the United States)
Where: Charles County, Maryland (38.4° N, 77.0° W: paleocoordinates 38.5° N, 72.2° W)
• coordinate estimated from map
When: Calvert Formation (Chesapeake Group), Aquitanian (23.0 - 20.4 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: estuary or bay; brown, silty sandstone
• Very low energy but biologically diverse; shallow marine
Size class: macrofossils
Preservation: original phosphate
Reposited in the USNM
Collection methods: surface (in situ),
Primary reference: M. D. Uhen. 2007. USNM Chesapeake Group Cetacean Collection Data. [M. Uhen/M. Uhen] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 71794: authorized by Mark Uhen, entered by Mark Uhen on 10.05.2007