| Krebs Formation | |
|---|---|
| Stratigraphic range: Carboniferous | |
| Type | Formation |
| Unit of | Cherokee Group [1] |
| Location | |
| Region | Missouri |
| Country | United States |
The Krebs Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
The Eagle Sandstone, originally the Eagle Formation, is a geological formation in Montana whose strata date back to the Late Cretaceous. It is a light to brownish gray to pale yellow-orange, fine-grained sandstone. It contains areas of crossbedding and local shale members. It contains large sandy calcareous concretions. Its thickness varies from 100 to 350 feet due to the lens nature of the individual sandstone layers and local interbedded sandy shale layers.
The Davis Formation is a geologic formation in Indiana and Missouri. It preserves fossils dating back to the Cambrian period.
The Chouteau Limestone is a geologic formation in Illinois, Iowa, Kansas, and Missouri. 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 Franconia Formation is a geologic formation in the upper mid-western United States, with outcroppings found in Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, Ohio, and Wisconsin. It preserves fossils dating back to the Cambrian period. It was named the Franconia Formation due to the first published documentation of exposures in vicinity of Franconia, Minnesota in the 1897 Ph.D. dissertation by Charles P. Berkley at the University of Minnesota titled Geology of the St. Croix Dalles. The Franconian stratigraphic stage was named after this formation.
The Burlington Limestone is a geologic formation in Missouri, Iowa and the Midwest region. It preserves fossils dating back to the Mississippian subperiod.
The Cabaniss Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
The Dennis Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
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 Lost Branch Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
The Plattsburg Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
The Swope Formation is a geologic formation in Missouri. It preserves fossils dating back to the Carboniferous period.
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 Leemon Formation is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The Cape Limestone is a geologic formation in Missouri. It preserves fossils dating back to the Ordovician period.
The Moccasin Springs Formation is a geologic formation in Missouri. It preserves fossils dating back to the Silurian 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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