Geologic formation in Illinois, United States
Grand Tower Limestone |
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Stratigraphic range: Devonian |
Type | Formation |
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Location |
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Region | Illinois |
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Country | United States |
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The Grand Tower Limestone is a geologic formation in Illinois. It preserves fossils dating back to the Devonian period.
See also
- Earth sciences portal
- Illinois portal
- Paleontology portal
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
Chronostratigraphy of Illinois
Ph | Cz | Q | Holocene | - Glacial alluvium, drift, and loess
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Pleistocene | - Embayment Megagroup
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- Mounds Gravel
- Grover Gravel
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N | |
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Pe | |
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Mz | |
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Pz | |
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