Where: Prince Georges County, Maryland (38.9° N, 76.7° W: paleocoordinates 39.4° N, 58.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Aquia Formation (Pamunkey Group), Late/Upper Paleocene (58.7 - 55.8 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 91715: authorized by Jocelyn Sessa, entered by Laurie Eccles on 17.10.2009, edited by Ursula Smith

Creative Commons license: CC BY (attribution)