Lindsay Formation

{{Short description|Geologic formation in Ontario}}

{{Infobox rockunit

| name = Lindsay Formation

| age = {{Fossil range|460.9|447.5|Trentonian to Maysvillian}}

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| type = Formation

| prilithology = Limestone

| otherlithology = Shale

| namedfor = Lindsay

| namedby = D. F. Hewitt

| year_ts = 1960

| region = Ontario

| country = Canada

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The Lindsay Formation is a geologic formation in Ontario. It preserves fossils dating back to the Ordovician period.