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Phosphoria Mine (Latest Hemphillian) (Neogene of the United States)

Where: Polk County, Florida (27.8° N, 81.9° W: paleocoordinates 28.0° N, 80.3° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Bone Valley Member (Peace River Formation), Late/Upper Hemphillian (10.3 - 4.9 Ma)

• Palmetto Fauna; Morgan (1994) lists the age as latest Hemphillian (Zanclean, early Pliocene); upper beds

• group of beds-level stratigraphic resolution

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

• 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 FLMNH

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 60036: authorized by Mark Uhen, entered by Mark Uhen on 27.04.2006, edited by John Alroy

Creative Commons license: CC BY (attribution)