| Threemile Formation Stratigraphic range: Permian | |
|---|---|
| Type | Formation |
| Location | |
| Region | Kansas |
| Country | United States |
The Threemile Formation is a geologic formation in Kansas. It preserves fossils dating back to the Permian period.
The Chouteau Limestone is a geologic formation in Illinois, Iowa, Kansas, and Missouri. It preserves fossils dating back to the Carboniferous period.
The Kansas City Formation is a geologic formation in Illinois. It preserves fossils dating back to the Carboniferous period.
The Howard Formation is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Drum Formation is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Vilas Shale is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Wann Formation is a geologic formation in Kansas and Oklahoma. It preserves fossils dating back to the Carboniferous period.
The Pillsbury Shale is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Stranger Formation is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Wabaunsee Formation is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Tarkio Formation is a geologic formation in Kansas. It preserves fossils dating back to the Carboniferous period.
The Crooked Creek Formation is a geologic formation in Kansas. It preserves fossils.
The McPherson Formation is a geologic formation in Kansas. It preserves fossils.
The Calhouns Shale is a geologic formation in Kansas. It preserves fossils.
The Brownville Formation is a geologic formation in Kansas. It preserves fossils.
The Pillsbury Formation is a geologic formation in Kansas. It preserves fossils.
The Wreford Limestone is a geologic formation in Kansas. It preserves fossils dating back to the Permian period.
The Hollenberg Formation is a geologic formation in Kansas. It preserves fossils dating back to the Permian period.
The Rexroad Formation is a geologic formation in Kansas. It preserves fossils dating back to the Neogene period. These fossils include two types of skunk, a tree bat, a ringtail, several snakes, such as Elaphe obsoleta, and a turkey.
The Benton Shale is a geologic formation in Montana, Wyoming, North Dakota, South Dakota, Colorado, Kansas, and Nebraska. It preserves fossils dating to the Cretaceous Period. The term Benton Limestone has also been used to refer to the chalky portions of the strata, especially the upper beds of the strata presently classified as Greenhorn Limestone. The Benton classification is obsolete in some regions, having been replaced by the ascending sequence Graneros Shale, Greenhorn Limestone, and Carlile Shale.
The Belle Fourche Formation or Belle Fourche Shale is a fossiliferous early Late-Cretaceous geologic formation classification in Wyoming. Named for outcrops in Belle Fourche River, Wyoming, this unit name is also used in Montana, North Dakota, and South Dakota.
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