Chesapeake Beach, south of, Zone 10-11 (Miocene of the United States)

Also known as Randle Cliff Beach, north

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

• coordinate stated in text

• outcrop-level geographic resolution

When: Plum Point Member (Calvert Formation), Langhian (16.0 - 13.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: estuary or bay; sandy claystone

• quiet water, soft bottom; variable to high amounts and diversity of molluscs; embayment
• no lithological description given

Size class: macrofossils

Preservation: original phosphate

Reposited in the USNM

Collection methods: surface (float),

• collected from a block of sediment apparently fallen from the cliff from Zone 10

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 71805: authorized by Mark Uhen, entered by Mark Uhen on 10.05.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Cetacea -
Tretosphys gabbii, Scaldicetus sp.
Tretosphys gabbii Cope 1868 toothed whale
Scaldicetus sp. Du Bus 1867 toothed whale