title: List of fossiliferous stratigraphic units in Oklahoma
text: # List of fossiliferous stratigraphic units in Oklahoma
  
  This article contains a list of fossil-bearing stratigraphic units in the state of Oklahoma, U.S.
  
  ## Sites
  
  | Group or Formation | Period |
  | - | - |
  | Ada Group/Ada Formation | Carboniferous |
  | Altamont Formation | Carboniferous |
  | Arbuckle Group/Arbuckle Formation | Ordovician |
  | Arbuckle Group/Kindblade Formation | Ordovician |
  | Atoka Formation | Carboniferous |
  | Baldy Hill Formation | Triassic |
  | Barnsdall Formation | Carboniferous |
  | Blaine Formation | Permian |
  | Bloyd Formation | Carboniferous |
  | Boggy Formation | Carboniferous |
  | Bois d'Arc Formation | Devonian |
  | Boone Formation | Carboniferous |
  | Bostwick Formation | Carboniferous |
  | Bromide Formation | Ordovician |
  | Brownstown Formation | Cretaceous |
  | Caney Formation | Carboniferous |
  | Cape Formation | Ordovician |
  | Carey Formation | Carboniferous |
  | Chapman Ranch Formation | Ordovician |
  | Cherokee Shale | Carboniferous |
  | Cherryvale Formation | Carboniferous |
  | Chickasha Formation | Permian |
  | Clarita Formation | Silurian |
  | Coffeyville Formation | Carboniferous |
  | Cotter Formation | Ordovician |
  | Council Grove Group/Beattie Limestone | Permian |
  | Council Grove Group/Foraker Formation | Carboniferous |
  | Council Grove Group/Johnson Formation | Permian |
  | Council Grove Group/Red Eagle Formation | Permian |
  | Council Grove Group/Roca Formation | Permian |
  | Deer Creek Formation | Carboniferous |
  | Deese Formation | Carboniferous |
  | Deese Group/Boggy Formation | Carboniferous |
  | Dennis Formation | Carboniferous |
  | Dewey Formation | Carboniferous |
  | Dog Creek Formation | Permian |
  | Dornick Hills Group/Lake Murray Formation | Carboniferous |
  | Dornick Hills Group/Golf Course Formation | Carboniferous |
  | El Reno Group/Chickasha Formation | Permian |
  | El Reno Group/Duncan Formation | Permian |
  | El Reno Group/Flowerpot Formation | Permian |
  | Enid Formation | Permian |
  | Fayetteville Formation | Carboniferous |
  | Fayetteville Shale | Carboniferous |
  | Flowerpot Formation | Permian |
  | Fort Scott Limestone | Carboniferous |
  | Francis Formation | Carboniferous |
  | Garber Sandstone | Permian |
  | Gene Autry Formation/Gene Autry Shale | Carboniferous |
  | Golf Course Formation | Carboniferous |
  | Grenola Formation | Permian |
  | Haragan Formation | Devonian |
  | Hennessey Formation | Permian |
  | Henryetta Coal Formation | Carboniferous |
  | Henryhouse Formation | Silurian |
  | Hertha Formation | Carboniferous |
  | Hindsville Limestone | Carboniferous |
  | Hogshooter Formation | Carboniferous |
  | Holdenville Formation | Carboniferous |
  | Hunton Formation | Devonian |
  | Iola Formation | Carboniferous |
  | Jefferson City Formation | Ordovician |
  | Johns Valley Formation | Carboniferous |
  | Keel Formation | Ordovician |
  | Kindblade Formation | Ordovician |
  | Krebs Group/Krebs Formation | Carboniferous |
  | Krebs Group/Boggy Formation | Carboniferous |
  | Krebs Group/Hartshorne Formation | Carboniferous |
  | Lake Murray Formation | Carboniferous |
  | Lansing Group/Barnsdall Formation | Carboniferous |
  | Lansing Group/Stanton Formation | Carboniferous |
  | Lansing Group/Vilas Shale | Carboniferous |
  | Laverne Formation | Neogene |
  | Lecompton Formation | Carboniferous |
  | Leonard Series Group/Blaine Formation | Permian |
  | Leonard Series Group/Dog Creek Formation | Permian |
  | Lost Branch Formation | Carboniferous |
  | Marmaton Group/Fort Scott Formation | Carboniferous |
  | Marmaton Group/Oologah Formation | Carboniferous |
  | McCully Formation | Carboniferous |
  | Mesa Rica Sandstone | Cretaceous |
  | Moorefield Formation | Carboniferous |
  | Morrison Formation | Jurassic |
  | Morrow Formation | Carboniferous |
  | Morrow Group/Bloyd Formation | Carboniferous |
  | Nelagoney Formation | Wildhorse |
  | Nelly Bly Formation | Carboniferous |
  | Neva Formation | Permian |
  | Ochelata Group/Wann Formation | Carboniferous |
  | Ogallala Group/Ogallala Formation | Neogene |
  | Ogallala Group/Laverne Formation | Neogene |
  | Ohio Shale | Devonian |
  | Oil Creek Formation | Ordovician |
  | Omadi Formation | Cretaceous |
  | Oolagah Formation | Carboniferous |
  | Oread Formation | Carboniferous |
  | Ozan Formation | Cretaceous |
  | Paluxy Formation | Cretaceous |
  | Parajito Formation | Cretaceous |
  | Pawnee Formation | Carboniferous |
  | Pinetop Formation | Devonian |
  | Pitkin Formation | Carboniferous |
  | Red Eagle Formation | Permian |
  | Redoak Hollow Formation | Carboniferous |
  | Rexroad Formation | Neogene |
  | Sausbee Formation | Carboniferous |
  | Seminole Formation | Carboniferous |
  | Simpson Group/Simpson Formation | Ordovician |
  | Simpson Group/Joins Formation | Ordovician |
  | Simpson Group/McLish Formation | Ordovician |
  | Simpson Group/Oil Creek Formation | Ordovician |
  | Simpson Group/Tulip Creek Formation | Ordovician |
  | Skiatook Group/Nellie Bly Formation | Carboniferous |
  | Skiatook Group/Seminole Formation | Carboniferous |
  | Sloan Canyon Formation | Triassic |
  | St. Joe Formation | Carboniferous |
  | Summerville Formation | Jurassic |
  | Sumner Group/Garber Formation | Permian |
  | Sumner Group/Wellington Formation | Permian |
  | Trinity Group/Antlers Formation | Cretaceous |
  | Viola Formation | Ordovician |
  | Wabaunsee Group/Brownville Formation | United States |
  | Wabaunsee Group/Burlingame Formation | Carboniferous |
  | Wabaunsee Group/Foraker Formation | Carboniferous |
  | Wann Formation | Carboniferous |
  | Wapanucka Formation | Carboniferous |
  | Wapanucka Limestone | Carboniferous |
  | Welden Limestone | Carboniferous |
  | Wellington Formation | Permian |
  | Wetumka Formation | Carboniferous |
  | Wewoka Formation | Carboniferous |
  | Wewoka Shale | Carboniferous |
  | Whitehorse Formation | Permian |
  | Winfield Formation | Permian |
  