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

• Paleontology in Oregon
• Lists of Oregon-related topics