Prout Limestone

{{Short description|Geologic formation In Ohio}}

{{Infobox rockunit

| name = Prout Limestone

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| type = Formation

| age = Devonian

| period = Devonian

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| region = Ohio

| country = United States

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| underlies = Ohio Shale

| overlies = Plum Brook Shale

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The Prout Limestone is a geologic formation in Ohio, United States. It preserves fossils dating back to the Devonian period.{{Cite journal |last=Stewart |first=Grace Anne |last2=Hendrix |first2=William Edwin |date=1945 |title=Ostracoda of the Plum Brook Shale, Erie County, Ohio |url=http://www.jstor.org/stable/1299151 |journal=Journal of Paleontology |volume=19 |issue=2 |pages=87–95 |issn=0022-3360}}