Little Cedar Formation

{{Short description|Geologic formation in the United States}}

{{Use dmy dates|date=February 2025}}

{{Infobox rockunit

| name = Little Cedar Formation

| image =

| caption =

| type = Formation

| age = Devonian

| period = Devonian

| prilithology =

| otherlithology =

| namedfor =

| namedby =

| region = Illinois

| country = United States

| coordinates =

| unitof =

| subunits = Hinkle Member, Eagle Center Member

| underlies =

| overlies =

| thickness =

| extent =

| area =

| map =

| map_caption =

}}

The Little Cedar Formation is a geologic formation in Illinois. It preserves fossils dating back to the Devonian period.