List of fossiliferous stratigraphic units in Arkansas

This article contains a list of fossil-bearing stratigraphic units in the state of Arkansas, U.S.

Sites Group or Formation Period Notes Annona Chalk Cretaceous Arkadelphia Marl Cretaceous Austin Chalk Cretaceous Batesville Sandstone Carboniferous Bloyd Shale Carboniferous Boone Formation Carboniferous Brownstown Marl Cretaceous Cane Hill Member of Hale Formation Carboniferous Claiborne Formation Paleogene Collier Shale Cambrian Comanche Formation Cretaceous De Queen Formation Cretaceous Dierks Limestone Cretaceous Everton Formation Ordovician Fayetteville Shale Carboniferous Hale Formation Carboniferous Hindsville Member of Batesville Formation Carboniferous Imo Formation Carboniferous Jackson Group/White Bluff Formation Paleogene Kimmswick Limestone Ordovician Marlbrook Marl Cretaceous Midway Group Paleogene Moorefield Formation Carboniferous Morrow Group/Bloyd Formation Carboniferous Nacatoch Formation Cretaceous Nacatoch Sand Cretaceous Navarro Group/Saratoga Chalk Cretaceous Ozan Formation Cretaceous Pentremital Limestone Group/Bloyd Formation Carboniferous Pitkin Formation Carboniferous Powell Formation Ordovician Saratoga Chalk Cretaceous Smackover Formation Jurassic Smithville Formation Ordovician St. Clair Limestone Silurian St. Joe Formation Carboniferous Taylor Group/Annona Chalk Cretaceous Taylor Group/Ozan Formation Cretaceous Theodosia Formation Ordovician Trinity Group/Holly Creek Formation Cretaceous Winslow Formation Carboniferous Witts Springs Formation Carboniferous

See also

Paleontology in Arkansas

References