| Noix Limestone | |
|---|---|
| Stratigraphic range: Ordovician | |
| Type | Formation | 
| Unit of | Edgewood Group | 
| Underlies | Silurian Bryant Knob Formation or Bowling Green Dolomite | 
| Overlies | Maquoketa Shale | 
| Lithology | |
| Primary | Oolitic limestone | 
| Location | |
| Region | Pike County, NE Missouri | 
| Country | United States | 
| Type section | |
| Named for | Outcrops along Noix Creek just south of Louisiana, Pike County, Missouri [1] | 
The Noix Limestone is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.