ammonites
Randle Cliff Beach, south Zone 10 (Miocene of the United States)

Where: Calvert County, Maryland (38.7° N, 76.5° W: paleocoordinates 38.9° N, 73.2° W)

• coordinate estimated from map

When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.7 Ma)

Environment/lithology: estuary or bay; sandy claystone

• quiet water, soft bottom; variable to high amounts and diversity of molluscs; embayment

Size class: macrofossils

Preservation: original phosphate

Reposited in the USNM

Collection methods: surface (in situ),

Primary reference: M. D. Uhen. 2007. USNM Chesapeake Group Cetacean Collection Data. [M. Uhen/M. Uhen] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71795: authorized by Mark Uhen, entered by Mark Uhen on 10.05.2007