ammonites
banner
Gateway to the Paleobiology Database
Grey Zone Phosphoria Mine (Miocene of the United States)

Where: Polk County, Florida (27.9° N, 81.8° W: paleocoordinates 28.1° N, 79.3° W)

• coordinate based on political unit

When: Bone Valley Member (Peace River Formation), Early/Lower Clarendonian (13.6 - 10.3 Ma)

• lower beds

• group of beds-level stratigraphic resolution

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

Size class: macrofossils

Primary reference: R. C. Hulbert, Jr. 1988. Cormohipparion and Hipparion (Mammalia, Perissodactyla, Equidae) from the Late Neogene of Florida. Bulletin of the Florida State Museum, Biological Sciences 33(5):229-338 [J. Alroy/J. Alroy/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18536: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Nick Pyenson and Mark Uhen

Creative Commons license: CC BY (attribution)