Where: Leon County, Florida (31.0° N, 84.5° W: paleocoordinates 31.1° N, 83.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jackson Bluff Formation (Alum Bluff Group), Late/Upper Pliocene (3.6 - 2.6 Ma)

• Lower upper Miocene bed. Ecphora Zone of Choctawhatchee Formation, Alum Bluff Group. The Ecphora zone, from which the collection is derived, is typically exposed in the upper fossiliferous bed unconformably overlying the Chipola Formation at Alum Bluff, Apachicola River. The bed ranges in thickness from 15-25 ft at different places along the bluff. Late Miocene age based on recent lithostratigraphy. Local section name = Holland, Basinal/regional section name = Leon. Placed in Jackson Bluff Fm (and hence Late Pliocene) by enterer.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, shelly/skeletal, blue, sandy claystone

Size class: macrofossils

Reposited in the USNM

• Specimens are lodged in USNM collections. Collected by G.C. Matson (1908)

Primary reference: W. C. Mansfield. 1930. Miocene gastropods and scaphopods of the Choctawatchee Formation of Florida. Florida State Geological Survey Bulletin 3 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59489: authorized by Austin Hendy, entered by Austin Hendy on 03.04.2006

Creative Commons license: CC BY (attribution)