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 - 13.8 Ma)

Environment/lithology: estuary or bay; sandy claystone

• sparse molluscs, low in diversity; subtropical environment in embayment and dry onshore; area not far from shore, bay, short-term eustatic transgression events, long-term regression trend

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

Creative Commons license: CC BY (attribution)

Taxonomic list

 Acipenseriformes - Acipenseridae
Acipenser sp. Linnaeus 1758 sturgeon
 Cetacea - Tranatocetidae
Mesocetus siphunculus Cope 1895 whale