Where: Calvert County, Maryland (38.5° N, 76.5° W: paleocoordinates 38.7° 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: estuary or bay; brown, sandy claystone

Size class: macrofossils

Preservation: original phosphate

Reposited in the USNM

Collection methods: surface (in situ),

Primary reference: A. R. Barwick. 1939. Miocene porpoise (Delphinodon dividum) from southern Maryland. American Midland Natualist 22:154-159 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45506: authorized by Mark Uhen, entered by Mark Uhen on 26.10.2004, edited by Margot Nelson

Creative Commons license: CC BY (attribution)