List of fossiliferous stratigraphic units in Oregon

Group or Formation Period Notes
Aldrich Mountains Group/Fields Creek Formation Triassic
Alkali Canyon Formation Neogene
Alsea Formation Paleogene
Astoria Formation Neogene
Astoria Formation Paleogene
Brisbois Formation Triassic
Butte Creek Volcanic Sandstone Formation Neogene
Chalk Butte Formation Neogene
Chico Formation Cretaceous
Clarno Formation Paleogene
Coaledo Formation Paleogene
Coon Hollow Formation Jurassic
Cowlitz Formation Paleogene
Coyote Butte Formation Permian
Coyote Butte Limestone Formation Permian
Days Creek Formation Cretaceous
Deer Butte Formation Neogene
Drewsey Formation Neogene
Elk River Formation
Empire Formation Neogene
Eugene Formation Paleogene
Graylock Formation Jurassic
Hudspeth Formation Cretaceous
Hurwal Formation Triassic
Hyde Formation Jurassic
John Day Formation Neogene, Paleogene
Juntura Formation Neogene
Keasey Formation Paleogene
Late Pleistocene terrace Formation
Lonesome Formation Jurassic
Lookingglass Formation Paleogene
Martin Bridge Formation Triassic
Mascall Formation Neogene
McKay Formation Neogene
Merced Formation Neogene
Mowich Group/Robertson Formation Jurassic
Myrtle Formation Jurassic
Myrtle Formation Cretaceous
Myrtle Group/Dotham Formation Cretaceous
Nestucca Formation Paleogene
Nicely Formation Jurassic
Nye Formation Neogene, Paleogene
Otter Point Formation Jurassic
Pittsburg FormationFormation Paleogene
Pittsburg Bluff Formation Paleogene
Port Orford Formation
Rail Cabin Argillite Formation Triassic
Scotts Mills Formation Paleogene
Snowshoe Formation Jurassic
Sucker Creek Formation Neogene
Suplee Formation Jurassic
The Dalles Formation Neogene
Tyee Formation Paleogene
Tyee Sandstone Formation
Umpqua Formation Paleogene
Umpqua Group/Bushnell Rock Formation Paleogene
Umpqua Group/Camas Valley Formation Paleogene
Umpqua Group/Tenmile Formation Paleogene
Umpqua Group/White Tail Ridge Formation Paleogene
Vester Formation Triassic
Weberg Formation Jurassic
Yaquina Formation Paleogene

See also

References

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