Where: Charles County, Maryland (38.4° N, 77.0° W: paleocoordinates 38.8° N, 61.1° 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 99275: authorized by Jocelyn Sessa, entered by Ursula Smith on 04.11.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Saccella parva Rogers and Rogers 1837 pointed nut clam
Nuculana cultelliformis pointed nut clam
Nuculana improcera pointed nut clam | |
Nucula (Nucula) potomacensis nut clam | |
Tellina williamsi Clark 1895 tellin clam | |
Lucina dartoni Clark 1895 clam | |
Venericardia (Venericor) ascia Rogers 1839 clam
Venericardia (Venericor) potapacoensis Clark and Martin 1901 clam |