Name Pridgen Limestone Member is here proposed for a subdivision of the newly named Ochlockonee Formation in south-central GA. The member is restricted in occurrence to the Gulf Trough northeast of the Chattahoochee embayment, from Coffee Co. in the northeast to the vicinity of Tift Co. in the southwest. The Pridgen is an argillaceous and more coarsely calcarenitic extension of the Ochlockonee and grades laterally into the typical Ochlockonee in Colquitt Co. Type section is designated at the core site of the Coffee 4 (GGS-3541) in Coffee Co., GA. A reference section and parastratotype is designated as the core Berrien 10 (GGS-3542), 2.1 mi northeast of the village of Enigma in northwestern Berrien Co., GA. Known lithology of this unit is overwhelmingly limestone. Dolostone or clay occurs only in scattered beds. Limestone is variably argillaceous and variably dolomitic, finely to coarsely granular and weakly fossiliferous, generally massive and structureless. Member is 317 ft (97 m) thick at its type section. Overlies undifferentiated upper Eocene limestone and conformably underlies the Wolf Pit Dolostone (new). Age is early Oligocene (Vicksburgian).

Source: GNU records (USGS DDS-6; Reston GNULEX).