Green River & Fowkes Formations, Santa Fe Group
geological formation in the western United States
Variable, up to
Clinker-bed breccia from the Wasatch Formation
center
Fort Union, Williams Fork, Torrejon & Evanston Formations
Wasatch Formation
Ypresian
Wasatch-formatie
stratigraphische Einheit in Wyoming (USA)
Powder River, Green River, Wind River, Bighorn, Piceance & Uinta Basins