Cuyahoga Formation
| Cuyahoga Formation | |
|---|---|
| Stratigraphic range: Mississippian | |
 Meadville Shale Member of the Cuyahoga Formation exposed in Lodi, Ohio. | |
| Type | Formation |
| Unit of | Waverly Group |
| Underlies | Logan Formation |
| Overlies | Sunbury Shale |
| Location | |
| Region |  Ohio |
| Country |  United States |
The Cuyahoga Formation is a geologic formation in Ohio. The age of the formation is difficult to determine, because of a lack of diagnostic fossils. Roughly, the formation dates from the Late Kinderhookian (354.8 to 350.8 million years ago) to the Middle Osagean (347.7 to 344.5 million years ago).[1] Three members are recognized. From oldest to youngest rock, they are the Orangeville Shale, Sharpsville Sandstone, and Meadville Shale.[2]
It preserves fossils dating to the Mississippian subperiod of the Carboniferous period.[3]
See also
References
- ^ Ausich, William I.; Guenther, Robert L. (February 1996). "Blastoids from the Cuyahoga Formation of Ohio (Echinodermata; Lower Mississippian)". Kirtlandia: 2. Retrieved April 8, 2018.
- ^ Keroher, Grace (1966). Lexicon of Geologic Names of the United States For 1936–1960. Part 3, P-Z. Geologic Survey Bulletin 1200. Washington, D.C.: U.S. Government Printing Office. p. 3552.
- ^ 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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