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American Agricultural Chemical Company Mine (Miocene of the United States)

Where: Polk County, Florida (27.8° N, 82.0° W: paleocoordinates 28.1° N, 79.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Bone Valley Member (Peace River Formation), Serravallian (13.7 - 11.6 Ma)

• Bradley Fauna; said to be Hemphillian, but Tertiary Mammals II says this is Barstovian, Ba2; lower beds

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal; lithified, pebbly, phosphatic, argillaceous, sandy sandstone

• Bone Valley Formation environment consists of shallow lagoons and bays along the coast. ,nearshore marine, low-energy bays of clay-rich beds and high energy channels
• Clastic rock unit consisting primarily of pebble- to sand-sized phosphates in a matrix of clay and quartz sand.

Size class: macrofossils

Preservation: original phosphate

Reposited in the MCZ

Collection methods: salvage,

Primary reference: G. S. Morgan. 1994. Miocene and Pliocene marine mammal faunas from the Bone Valley Formation of central Florida. Contributions in Marine Mammal Paleontology Honoring Frank C. Whitmore Jr., Proceedings of the San Diego Society of Natural History 29:239-268 [J. Alroy/J. Alroy/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 45469: authorized by Mark Uhen, entered by Nick Pyenson on 25.10.2004, edited by Mark Uhen

Creative Commons license: CC BY (attribution)