Byron Formation

{{More citations needed|date=June 2019}}

{{Infobox rockunit

| name = Byron Formation

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| type = Formation

| age = Silurian

| period = Silurian

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| region = Michigan and Wisconsin

| country = United States

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| unitof = Burnt Bluff Group

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| underlies = Hendricks Formation

| overlies = Lime Island Formation

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The Byron Formation is a geologic formation in Michigan and Wisconsin.{{Cite web|url=https://deepblue.lib.umich.edu/bitstream/handle/2027.42/48577/ID435.pdf;sequence=2|title=Silurian Rocks of Michigan and their Correlation|last1=Ehlers|first1=George M.|first2=Robert V.|last2=Kesling|access-date=2019-06-22}} It preserves fossils dating back to the Silurian period.