Polk County, Florida paleontological sites
The Polk County paleontological sites are assemblages of Early Miocene to Late Pleistocene vertebrates occurring in Polk County, Florida, United States. Age. Era: Neogene Period: Miocene to Pleistocene, ~17.7—1.5 Mya. (calculates to a period of approximately ). Faunal stage: Hemingfordian through early Clarendonian Geological Formation: Bone Valley Formation. Sites. Polk County can boast more individual fossil recovery sites than any other Florida county due to the phosphate mining concerns. Bone Valley Formation is a prime geologic formation. Some of these sites are: Agricola Road (AEO), Agrico Pierce Mine (AEO), American Agricultural Chemical Company Mine, Brewster Phosphate  Mine, Fort Meade Mine, Kingsford Mine, Phosphoria Mine, Fort Green Mine, Payne Creek Mine, and Palmetto Mine. Coordinates: Notation. The taxa listed within this article were compiled from numerous collections within Paleobiology Database . authorized by John Alroy, Ph.D. Further documentation on these genera and species are available.