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 ChalkCretaceous
Arkadelphia MarlCretaceous
Austin ChalkCretaceous
Batesville SandstoneCarboniferous
Bloyd ShaleCarboniferous
Boone FormationCarboniferous
Brownstone MarlCretaceous
Cane Hill FormationCarboniferous
Claiborne FormationPaleogene
Collier ShaleCambrian
Comanche FormationCretaceous
De Queen FormationCretaceous
Dierks LimestoneCretaceous
Everton FormationOrdovician
Fayetteville ShaleCarboniferous
Hale FormationCarboniferous
Hindsville FormationCarboniferous
Imo FormationCarboniferous
Jackson Group/White Bluff FormationPaleogene
Kimmswick LimestoneOrdovician
Marlbrook MarlCretaceous
Midway FormationPaleogene
Moorefield FormationCarboniferous
Morrow Group/Bloyd FormationCarboniferous
Nacatoch FormationCretaceous
Nacatoch SandCretaceous
Navarro Group/Saratoga ChalkCretaceous
Ozan FormationCretaceous
Pentremital Limestone Group/Bloyd FormationCarboniferous
Pitkin FormationCarboniferous
Powell FormationOrdovician
Saratoga ChalkCretaceous
Smackover FormationJurassic
Smithville FormationOrdovician
St. Clair LimestoneSilurian
St. Joe FormationCarboniferous
Taylor Group/Annona ChalkCretaceous
Taylor Group/Ozan FormationCretaceous
Theodosia FormationOrdovician
Trinity Group/Holly Creek FormationCretaceous
Winslow FormationCarboniferous
Witts Springs FormationCarboniferous
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See also

References
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 31 July 2014. Retrieved 22 June 2014.
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