Fern Glen Formation

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]

See also

• Paleontology portal

• List of fossiliferous stratigraphic units in Missouri
• Paleontology in Missouri