Where: Calvert County, Maryland (38.6° N, 76.5° W: paleocoordinates 38.8° N, 73.2° W)
• coordinate estimated from map
When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.8 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; blue claystone
Size class: macrofossils
Preservation: original phosphate
Reposited in the USNM
Collection methods: surface (in situ),
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: taxonomic analysis
PaleoDB collection 70820: authorized by Mark Uhen, entered by Mark Uhen on 09.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list