The Jefferson County, Florida paleontological sites are assemblages of Mid-Miocene to Late Pleistocene vertebrates from Jefferson County, Florida, United States.
Era
Neogene
Period
Miocene to Pleistocene, ~23.03 Mya—11,000 years ago. (calculates to a period of approximately).
Faunal stage
Clarendonian through early Rancholabrean
Ashville site (Miocene) Time period: ~13.5—12.7 Mya.[1]
Aucilla River site (Pleistocene) Time period: ~126,000—11,000 years ago. The Aucilla site specimens were discovered by amateur paleontologist Dr. Richard Ohmes of Bremerton, Washington in 1969.[2]
Coordinates: 30.1°N -83.9°W
Wacissa River site (Pleistocene) Time period: ~126,000—11,000 years ago. Collected by R. Alexon, B. Mathen, R. Gingery in October 1981; in shallow water. Specimens reposited in the Florida Museum of Natural History.[3]
Coordinates: 30.4°N -83.9°W Ashland site = ASH. Aucilla River site = ARS. Wacissa River site = WRS.