// Workers AI · dad joke modeWhat did the Mattoon Formation say? "I'm a rock-solid formation.
| Mattoon Formation | |
|---|---|
| Stratigraphic range: Pennsylvanian | |
| Type | Formation |
| Unit of | McLeansboro Group |
| Overlies | Bond Formation |
| Location | |
| Region | Illinois and Indiana |
| Country | United States |
The Mattoon Formation is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period.
See also
[edit]Bibliography
[edit]- "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
 | This article about a specific stratigraphic formation in Illinois is a stub. You can help Wikipedia by adding missing information. |