Where: Liberty County, Florida (30.4° N, 85.0° W: paleocoordinates 30.8° N, 81.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• STRATIGRAPHIC POSITION: described as Lower or "Chipola" bed. AGE: Direct date from 87Sr/86Sr isotope dating of fossils from elsewhere in Chipola Fm [=Burdigalian age].

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, calcareous marl and unlithified, calcareous sandstone

Size class: macrofossils

Reposited in the USGS

Primary reference: J. R. Gardner. 1947. The Molluscan Fauna of the Alum Bluff Group of Florida. United States Geological Survey Professional Paper (142A-H)1-709 [A. Miller/K. Layou/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42271: authorized by Arnold Miller, entered by Karen Layou on 27.07.2004

Creative Commons license: CC BY (attribution)