Alum Bluff (Miocene of the United States)

Where: Liberty County, Florida (30.5° N, 85.0° W: paleocoordinates 30.9° N, 81.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Chipola Formation (Alum Bluff Group), Burdigalian (20.4 - 16.0 Ma)

• AGE: Direct date from 87Sr/86Sr isotope dating of fossils from elsewhere in Chipola Fm [=Burdigalian age].

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified, medium-grained, coarse, shelly/skeletal sandstone

• ENVIRONMENT: Deposited in shallow, warm to temperate waters, mostly in a marginal marine environment.
• SPECIFIC LITHOLOGY: Medium-coarse grained sand beds, shelly. LITHIFICATION: Unlithified, based on observation of specimens.

Size class: macrofossils

Preservation: original aragonite, original calcite

Reposited in the USNM

Primary reference: W. M. Ingram. 1939. Notes on Cypraea heilprini Dall and Cypraea chilona Dall, with new species from the Pliocene of Costa Rica. Bulletins of American Paleontology 24(84):321-326 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179091: authorized by Pete Wagner, entered by Pete Wagner on 28.05.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Cypraeidae
"Cypraea chilona" = Loxacypraea chilona
"Cypraea chilona" = Loxacypraea chilona Dall 1900 cowry