Fern Glen Formation
Geologic formation in Missouri, U.S.
From Wikipedia, the free encyclopedia
The Fern Glen Formation is a geologic formation in eastern and southeastern Missouri. It preserves fossils dating back to the Osagean Series of the Mississippian subperiod.
| Fern Glen Formation | |
|---|---|
| Stratigraphic range: Mississippian Osagean | |
| Type | Formation |
| Underlies | Burlington Limestone |
| Overlies | Chouteau Group[1] |
| Lithology | |
| Primary | Limestone |
| Other | Shale, chert[2] |
| Location | |
| Country | United States |
| Extent | East central and southeastern Missouri,[2] Illinois |
| Type section | |
| Named for | Fern Glen resort on the Meramec River |
| Named by | Weller in 1906[1] |
The Fern Glen is richly fossiliferous with abundant crinoids, corals, brachiopods and bryozoa.[2]
