Where: Prince Georges County, Maryland (38.8° N, 76.7° W: paleocoordinates 39.1° N, 60.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Nanjemoy Formation (Pamunkey Group), Ypresian (56.0 - 47.8 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: mesofossils
Primary reference: K. V. Palmer and D. C. Brann. 1965. Catalogue of the Paleocene and Eocene mollusca of the southern and eastern United States. Part 1. Pelecypoda, Amphineura, Peteropoda, Scaphopoda and Cephalopoda. Bulletins of American Paleontology 48:1-471 [M. Kosnik/M. Kosnik/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 99289: authorized by Jocelyn Sessa, entered by Ursula Smith on 04.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Scaphopoda | |
Dentalium "sp. B" Linnaeus 1758 tusk shell | |
Bivalvia | |
Nucula (Nucula) potomacensis nut clam | |
Venericardia (Venericor) potapacoensis Clark and Martin 1901 clam | |
Gastropoda | |
Euspira marylandica Conrad 1865 moon snail |