Fern Glen Formation

Fern Glen Formation
Stratigraphic range: Mississippian Osagean
TypeFormation
UnderliesBurlington Limestone
OverliesChouteau Group[1]
Lithology
PrimaryLimestone
OtherShale, chert[2]
Location
CountryUnited States
ExtentEast central and southeastern Missouri,[2] Illinois
Type section
Named forFern Glen resort on the Meramec River
Named byWeller in 1906[1]

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.

The Fern Glen is richly fossiliferous with abundant crinoids, corals, brachiopods and bryozoa.[2]