Stratigraphic range: Sheinwoodian
|Underlies||Boyle Formation and Lilley Formation|
|Overlies||Crab Orchard Formation and Estill Shale|
|Region||Kentucky and Ohio|
- 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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