| Duncan Formation | |
|---|---|
| Stratigraphic range: Permian | |
| Type | Formation |
| Location | |
| Region | Oklahoma |
| Country | United States |
| Type section | |
| Named for | Duncan, Stephens County, Oklahoma |
| Named by | Charles Newton Gould, 1924 [1] |
The Duncan Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Barneston Formation is a geologic formation in Kansas, extending into Oklahoma and Nebraska. It preserves fossils dating back to the Permian period.
The Morrow Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Carboniferous period.
The Viola Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Ordovician period.
The Blaine Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Chickasha Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Roadian stage of the Middle Permian. These include, among others, the dissorophoid temnospondyl Nooxobeia gracilis, the lepospondyl Diplocaulus parvus, and the captorhinid Rothianiscus robusta, initially called Rothia robusta by Olson.
The Dog Creek Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Flowerpot Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Enid Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Hennessey Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Garber Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Permian period.
The Whitehorse Formation is a geologic formation in Nebraska and Oklahoma. It preserves fossils dating back to the Permian period.
The El Reno Group is a geologic group in Oklahoma. It preserves fossils dating back to the Permian period.
The Leonard Series is a geologic group in Oklahoma. It preserves fossils dating back to the Permian period.
The Belle Plains Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period.
The Vale Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period. Diplocaulus recurvatus is one of the creatures discovered there.
The Petrolia Formation is a geologic formation in Texas. It preserves fossils dating back to the Permian period.
The Park City Formation is a geologic formation in Montana and Utah. It preserves fossils dating back to the Permian period.
The Minnekahta Formation is a geologic formation in Wyoming, United States. It preserves fossils dating back to the Permian period.
The Satanka Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Permian period.
The Maroon Formation is a geologic formation in Colorado. It preserves fossils dating back to the Permian period. It is the primary formation of sandstone that lends the vivid red color to the hills around Glenwood Springs, Colorado.
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