Stratigraphic range: Middle Devonian
|Underlies||Traverse Group, Rogers City Limestone, and Silica Formation|
|Overlies||Anderdon Limestone, Detroit River Group, and Lucas Formation|
|Region||Ontario, Michigan, and Ohio|
|Country||Canada and the United States|
- 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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