| 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 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]
The Chouteau Limestone is a geologic formation in Illinois, Iowa, Kansas, and Missouri. It preserves fossils dating back to the Carboniferous period.
The Fort Scott Limestone or Fort Scott Subgroup is a geologic formation in Illinois, Kansas, Missouri, and Oklahoma. It preserves fossils dating back to the Carboniferous period.
The Keokuk Limestone is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian sub-period.
The Warsaw Formation is a geologic formation in Illinois, Iowa and Missouri. It preserves fossils dating back to the Mississippian subperiod.
The Roubidoux Formation is a geologic formation in the Ozarks of Missouri. It preserves fossils dating back to the Ordovician period.
The Powell Formation or Powell Dolomite is a geologic formation in northern Arkansas, southeast Missouri and Virginia. It contains gastropod, cephalopod, and trilobite fossils dating back to the Ordovician Period.
The Cotter Formation is a geologic formation in Arkansas, Missouri, Oklahoma and in Virginia. It preserves fossils dating back to the Ordovician period.
The Fernvale Limestone is a geologic formation in Alabama, Arkansas, Illinois, Missouri, Oklahoma, and Tennessee. It preserves fossils dating back to the Ordovician period.
The Smithville Formation or Smithville Dolomite is a geologic formation in Arkansas. It preserves fossils dating back to the Ordovician period.
The Theodosia Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The Derby-Doerun Dolomite is a Cambrian geologic formation exposed in southeast Missouri. Originally the Derby and Doerun were originally considered separate formations, but now considered a single unit. The combined name is from the Derby Mine and the Doe Run Lead Company of the Old Lead Belt.
The Eminence Formation or Eminence Dolomite is a geologic formation in Missouri. It preserves fossils dating back to the Cambrian period.
The Potosi Formation is a geologic formation in Missouri, Illinois and Indiana. It preserves fossils dating back to the Cambrian period.
The Chouteau Group is a geologic group in Missouri. It preserves fossils dating back to the Mississippian subperiod.
The Burlington Limestone is a geologic formation in Missouri, Iowa and the Midwest region. It preserves fossils dating back to the Mississippian subperiod.
The Jefferson City Formation or Jefferson City Dolomite is a geologic formation in the Ozarks of Missouri and Arkansas. The Jefferson City is in part not differentiated from the Cotter Formation of northern Arkansas. It preserves fossils dating back to the Ordovician period.
The Noix Limestone is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The Rich Fountain Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The Bowling Green Dolomite is a geologic formation in Missouri. It preserves fossils dating back to the Silurian period.
The Bryant Knob Formation is a geologic formation in Missouri. It preserves fossils dating back to the Silurian period.
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