Bellevue Formation

{{Short description|Geologic formation in Ohio and Kentucky}}

{{Infobox rockunit

| name = Bellevue Formation

| image = Bellevue trepostomes.jpg

| caption = Trepostome bryozoans from the Bellevue Formation in northern Kentucky.

| type = Formation

| age = Ordovician

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| region = Ohio Kentucky

| country = United States

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The Bellevue Formation is a geologic formation in Ohio and Kentucky. It preserves fossils dating back to the Ordovician period.