List of fossiliferous stratigraphic units in Illinois

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

Sites

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Group or Formation Period Notes
Altamont Formation Carboniferous
Platteville Limestone Ordovician
St. Louis Limestone Carboniferous
Brainard Formation Ordovician
Carbondale Formation Carboniferous
Caseyville Formation Carboniferous
Cedar Valley Formation Devonian
Little Cedar Formation Devonian
Chester Formation Carboniferous
Hardinsburg Formation Carboniferous
Clore Formation Carboniferous
Tar Springs Formation Carboniferous
Chouteau Formation Carboniferous
Clayton Formation Paleogene
Decorah Shale Ordovician
Degonia Formation Carboniferous
Des Moines Formation Carboniferous
Drurey Shale Carboniferous
English River Formation Carboniferous
Fort Scott Limestone Carboniferous
Fraileys Formation Carboniferous
Fraileys Shale Carboniferous
Galena Dolomite Ordovician
Dubuque Formation Ordovician
Dunleith Formation Ordovician
Guttenberg Formation Ordovician
Ion Formation Ordovician
Wise Lake Formation Ordovician
Glen Park Formation Carboniferous
Glenwood Formation Ordovician
Golconda Formation Carboniferous
Golconda Group Carboniferous
Haney Formation Carboniferous
Gower Formation Silurian
Grand Detour Formation Ordovician
Grand Tower Limestone Devonian
Haney Limestone Carboniferous
Iola Formation Carboniferous
Kansas City Formation Carboniferous
Keokuk Limestone Carboniferous
Spoon Formation Carboniferous
Kimmswick Limestone Ordovician
Kinkaid Formation Carboniferous
Linton Formation Carboniferous
Maquoketa Formation Ordovician
Brainard Shale Ordovician
Fort Atkinson Limestone Ordovician
Neda Formation Ordovician
Scales Shale Ordovician
Mattoon Formation Carboniferous
McCraney Limestone Carboniferous
Bond Formation Carboniferous
Patoka Formation Carboniferous
Shelburn Formation Carboniferous
McLeansbough Formation Carboniferous
Mifflin Formation Ordovician
Mosalem Formation Silurian
Nachusa Formation Ordovician
Glen Dean Formation Carboniferous
Orchard Creek Shale Ordovician
Paint Creek Formation Carboniferous
Pawnee Formation Carboniferous
Pecatonica Formation Ordovician
McGregor Formation Ordovician
Prosser Limestone Ordovician
Purington Shale Carboniferous
Quimbys Mill Formation Ordovician
Racine Dolomite Silurian
Ridenhower Formation Carboniferous
Salem Formation Carboniferous
Shakopee Formation Ordovician
Spechts Ferry Formation Ordovician
St. Laurent Formation Devonian
St. Louis Formation Carboniferous
St. Peter Sandstone Ordovician
Ste. Genevieve Limestone Carboniferous
Sturgis Formation Carboniferous
Sugar Run Dolomite Silurian
Tradewater Formation Carboniferous
Verdigris Formation Carboniferous
Waltersburg Formation Carboniferous
Warsaw Formation Carboniferous
Wilhelmi Formation Silurian

See also

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References

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Wikisource has original works on the topic: Paleontology in the United States#Illinois
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
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