Earth:Tongue River Member
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| Tongue River Member Stratigraphic range: Paleogene | |
|---|---|
| File:Massive machinery at work in the open-pit Wyodak coal mine in the coal-rich Powder River Basin outside Gillette, Wyoming LCCN2015634185.tif Mining the coal-rich Tongue River Member, Fort Union Formation (Wyodak coal mine, Powder River Basin, Wyoming) | |
| Type | Member |
| Unit of | Fort Union Formation |
| Overlies | Lebo Member |
| Location | |
| Region | North Dakota, Wyoming |
| Country | United States |
The Tongue River Member is the uppermost geologic member of the Fort Union Formation in Montana, North Dakota, Wyoming.[1] The strata are yellow or light-colored massive sandstones and numerous thick coal beds.[2]
The vertebrate fossil fauna includes fishes, turtles, crocodiles, and mammals. Mammalian genera known from rocks of both the Torrejonian and the Tiffanian land mammal ages (middle and late Paleocene) are present.[3]
See also
- List of fossiliferous stratigraphic units in North Dakota
- Paleontology in North Dakota
- Paleontology in Wyoming
References
- ↑ , Wikidata Q62118849
- ↑ Thom, W.T., Jr., and Dobbin, C.E., 1924, Stratigraphy of Cretaceous-Eocene transition beds in eastern Montana and the Dakotas: Geological Society of America Bulletin, v. 35, no. 9, p. 481-505.
- ↑ ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". https://www.fossilworks.org.
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