List of fossiliferous stratigraphic units in Wyoming

Group or Formation Period Notes
Almond Formation Cretaceous
Almy Formation Paleogene
Amsden Formation Carboniferous
Arikaree Formation Neogene
Ash Hollow Formation Neogene
Aspen Shale Cretaceous
Aycross Formation Paleogene
Beartooth Butte Formation Devonian
Bell Springs Formation Triassic
Belle Fourche Formation Cretaceous
Benton Formation Cretaceous
Bighorn Formation Ordovician
Bridger Formation Paleogene
Brule Formation Paleogene
Brule Formation Paleogene
Carlile Shale Cretaceous
Casper Formation Permian, Carboniferous
Chadron Formation Paleogene
Chugwater Group/Alcova Limestone Triassic
Chugwater Group/Crow Mountain Formation Triassic
Chugwater Group/Popo Agie Formation Triassic
Chugwater Group/Red Peak Formation Triassic
Cloverly Formation Cretaceous
Cody Shale Cretaceous
Colorado Formation Cretaceous
Colorado Group/Graneros Shale Cretaceous
Colorado Group/Mowry Shale Cretaceous
Colter Formation Neogene
Dakota Formation Cretaceous
Deadwood Formation Ordovician, Cambrian
Dinwoody Formation Triassic
Dry Creek Shale Cambrian
DuNoir Formation Cambrian
DuNoir Limestone Cambrian
Eagle Formation Cretaceous
Evanston Formation Paleogene
Fall River Sandstone Cretaceous
Ferris Formation Paleogene, Cretaceous
Fort Union Formation Paleogene
Fowkes Formation Paleogene
Frontier Formation Cretaceous
Gallatin Formation Cambrian
Gartra Formation Triassic
Gering Formation Paleogene
Goose Egg Formation Permian
Green River Formation Paleogene
Gros Ventre Formation Cambrian
Gypsum Spring Formation Jurassic
Gypsum Springs Formation Jurassic
Hailey Shale Cretaceous
Hanna Formation Paleogene
Harebell Formation Cretaceous
Harrison Formation Miocene
Hoback Formation Paleogene
Iles Formation Cretaceous
Indian Meadows Formation Paleogene
Jelm Formation Triassic
Lamar River Formation Paleogene
Lance Formation Cretaceous
Lance Formation Cretaceous
Laramie Formation Cretaceous
Lebo Formation Paleogene
Madison Group/Lodgepole Formation and Mission Canyon Formation Devonian
Mancos Shale Cretaceous
Marsland Beds Formation Neogene
Medicine Bow Formation Cretaceous
Mesaverde Formation Cretaceous
Mesaverde Formation Cretaceous
Mesaverde Formation Cretaceous
Mesaverde Group/Almond Formation Cretaceous
Meteetse Formation Cretaceous
Middle Variegated Sequence Formation Paleogene
Minnekahta Formation Permian
Monroe Creek Formation Paleogene
Montana Group/Fox Hills Formation Cretaceous
Montana Group/Pierre Shale Cretaceous
Morrison Formation Jurassic
Mowry Shale Cretaceous
Newcastle Sandstone Cretaceous
Niobrara Formation Cretaceous
North Park Formation Neogene
Ogallala Formation Neogene
Open Door Formation Cambrian
Open Door Limestone Cambrian
Park City Formation Permian
Park Shale Cambrian
Pass Peak Formation Paleogene
Phosphoria Formation Permian
Pierre Shale Cretaceous
Pinyon Conglomerate Formation Cretaceous
Polecat Bench Formation Paleogene
Puerco Formation Paleogene
Rock Springs Formation Cretaceous
Satanka Formation Permian
Sepulcher Formation Paleogene
Shedhorn Formation Permian
Shooting Iron Formation Pliocene
Snowy Range Formation Cambrian
Split Rock Formation Neogene
Sundance Formation Jurassic
Tatman Formation Paleogene
Teewinot Formation Neogene
Telegraph Creek Formation Cretaceous
Tepee Trail Formation Paleogene
Thaynes Formation Triassic
Thomas Fork Formation Cretaceous
Twin Creek Formation Jurassic
Twin Creek Limestone Jurassic
Wagon Bed Formation Paleogene
Wapiti Formation Paleogene
Wasatch Formation Paleogene
Washakie Formation Paleogene
White River Formation Paleogene
Wiggins Formation Paleogene
Willwood Formation Paleogene
Wind River Formation Paleogene
Woodside Formation Triassic

See also

References

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