List of fossiliferous stratigraphic units in Alaska

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This article contains a list of fossil-bearing stratigraphic units in the state of Alaska, U.S.

Alaska U.S. state in the United States

Alaska is a U.S. state in the northwest extremity of the United States West Coast, just across the Bering Strait from Asia. The Canadian province of British Columbia and territory of Yukon border the state to the east and southeast. Its most extreme western part is Attu Island, and it has a maritime border with Russia to the west across the Bering Strait. To the north are the Chukchi and Beaufort seas—southern parts of the Arctic Ocean. The Pacific Ocean lies to the south and southwest. It is the largest U.S. state by area and the seventh largest subnational division in the world. In addition, it is the 3rd least populous and the most sparsely populated of the 50 United States; nevertheless, it is by far the most populous territory located mostly north of the 60th parallel in North America: its population—estimated at 738,432 by the United States Census Bureau in 2015— is more than quadruple the combined populations of Northern Canada and Greenland. Approximately half of Alaska's residents live within the Anchorage metropolitan area. Alaska's economy is dominated by the fishing, natural gas, and oil industries, resources which it has in abundance. United States armed forces bases and tourism are also a significant part of the economy.

Contents

Sites

Group or Formation Period Notes
Adams Argillite Formation Cambrian
Alapah Formation Carboniferous
Baird Formation Devonian, Silurian
Bear Lake Formation Neogene
Beaver Bay Group/Stepovak Formation Paleogene
Beaver Bay Group/Tolstoi Formation Paleogene
Bowser Formation Jurassic
Buchia Ridge Formation Cretaceous
Cantwell Formation Cretaceous
Cape Deceit Formation
Cascaden Ridge Formation Devonian
Chapin Peak Formation Triassic
Cheeneetnuk Formation Devonian
Chickaloon Formation Paleogene
Chignik Formation Cretaceous
Chinitna Formation Jurassic
Chisana Formation Cretaceous
Chitistone Formation Triassic
Colville Group/Prince Creek Formation Paleogene, Cretaceous
Cornwallis Limestone Triassic
Coronados Volcanics Formation Devonian
Corwin Formation Cretaceous
Cynthia Falls Sandstone Jurassic
Dd Formation Ordovician
Descon Formation Silurian
Eagle Creek Formation Permian
Eek Mountain Formation Cretaceous
Eli Formation Devonian
Etivluk Group/Otuk Formation Triassic
Etivluk Group/Siksikpuk Formation Permian, Carboniferous
Fitz Creek Siltstone Jurassic
Fossil Creek Volcanics Formation Ordovician
Glenn Shale Triassic
Grubstake Formation Neogene
Gubik Formation
Halleck Formation Permian
Hasen Creek Formation Permian
Heceta Limestone Silurian
Hillard Limestone Cambrian
Holitna Formation Triassic, Silurian
Hoodoo Formation Cretaceous
Hound Island Volcanics Formation Triassic
Ignek Formation Cretaceous
Imuruk Volcanics Formation Neogene
Jones Ridge Limestone Cambrian
Kamishak Formation Jurassic, Triassic
Kanayut Formation Devonian
Karheen Formation Devonian, Silurian, Ordovician
Kashevarof Formation Silurian
Kennel Creek Formation Silurian
Kennicott Formation Cretaceous
Kialagvik Formation Jurassic
Kingak Shale Jurassic
Kongakut Formation Cretaceous
Kugururok Formation Devonian
Kukpowruk Formation Cretaceous
Kuna Formation Carboniferous
Kupowruk Formation Cretaceous
Ladrones Formation Carboniferous
Limestone Mountain Formation Devonian
Lisburne Group/Alapah Limestone Carboniferous
Lisburne Group/Kogruk Formation Carboniferous
Lisburne Group/Upper Formation Carboniferous
Lone Mountain Formation Ordovician
Lower Cantwell Formation Cretaceous
Matanuska Formation Cretaceous
McCann Hill Formation Devonian
McCann Hill Chert Formation Devonian
McCarthy Formation Triassic
Mount Dall Formation Permian
Mount Oratia Formation Cretaceous
Naknek Formation Jurassic
Nanook Formation Devonian, Ordovician
Nanushuk Formation Cretaceous
Nanushuk Formation Cretaceous
Nanushuk Group/Chandler Formation Cretaceous
Nanushuk Group/Prince Creek Formation Cretaceous
Narrow Cape Formation Neogene
Nation River Formation Devonian
Nehenta Formation Triassic
Nuka Formation Carboniferous
Ogilvie Formation Devonian
Okipruak Formation Cretaceous
Okpikruak Formation Cretaceous
Orca Formation Paleogene
Otuk Formation Triassic
Peratrovich Formation Carboniferous
Phelan Creek Formation Permian
Port Clarence Limestone Ordovician
Port Refugio Formation Devonian
Poul Creek Formation Paleogene
Prince Creek Formation Cretaceous
Pybus Formation Permian
Road River Formation Silurian, Ordovician
Sadlerochit Formation Permian
Sadlerochit Group/Ivishak Formation Triassic
Sagavanirktok Formation Neogene
Salmontrout Limestone Devonian
Schrader Bluff Formation Cretaceous
Shelikof Formation Jurassic
Shublik Formation Triassic
Siksikpuk Formation Permian
Skajit Formation Devonian
Slana Spur Formation Permian
Soda Creek Formation Devonian
South Bight II Formation
Split Creek Formation Paleogene
Staniukovich Formation Cretaceous, Jurassic
Stepovak Formation Paleogene
Tachilni Formation Neogene
Takhandit Formation Permian
Talkeetna Formation Jurassic
Telsitina Formation Ordovician
Telsitna Formation Ordovician
Tetelna Formation Permian
Tiglukpuk Formation Jurassic
Tolovana Formation Devonian
Tolstoi Formation Paleogene
Topsy Formation Neogene
Torok Formation Cretaceous
Tuxedni Group/Bowser Formation Jurassic
Tuxedni Group/Cynthia Falls Sandstone Jurassic
Tuxedni Group/Gaikema Formation Jurassic
Tuxedni Group/Red Glacier Formation Jurassic
Tyonek Formation Neogene
Ulungarat Formation Devonian
Unalaska Formation Neogene, Paleogene
Ungalikthluk Belt Formation Cretaceous
Upper Naknek Formation Jurassic
Wachsmuth Formation Carboniferous
Wadleigh Formation Devonian
Wadleigh Limestone Devonian
Whirlwind Creek Group/Upper Formation Devonian
Willoughby Formation Silurian
Willoughby Limestone Silurian
Yakataga Formation Neogene

See also

Related Research Articles

The Alapah Limestone is a geologic formation in Alaska. It preserves fossils dating back to the Carboniferous period.

The Torok Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.

The Staniukovich Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.

The Okpikruak Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.

The Kukpowruk Formation is a geologic formation in Alaska. It preserves fossils dating back to the Cretaceous period.

The McCann Hill Chert is a geologic formation in Alaska. It preserves fossils dating back to the Devonian period.

The Wadleigh Limestone is a geologic formation in Alaska. It preserves fossils dating back to the Devonian period.

The Coronados Volcanics is a geologic formation in Alaska. It preserves fossils dating back to the Devonian period.

The Kialagvik Formation is a geologic formation in Alaska. It preserves fossils dating back to the Jurassic period.

The Kingak Shale is a geologic formation in Alaska. It preserves fossils dating back to the Jurassic period.

The Tyonek Formation is a geologic formation in Alaska. It preserves fossils dating back to the Neogene period.

The Fossil Creek Volcanics is a geologic formation in Alaska. It preserves fossils dating back to the Ordovician period.

The Chickaloon Formation is a geologic formation in Alaska. It preserves fossils dating back to the Paleogene period.

Poul Creek Formation

The Poul Creek Formation is a geologic formation in Alaska. It preserves fossils dating back to the Paleogene period.

The Eagle Creek Formation is a geologic formation in Alaska. It preserves fossils dating back to the Permian period.

The Willoughby Limestone is a geologic formation in Alaska. It preserves fossils dating back to the Silurian period.

The Road River Formation is a geologic formation in Alaska. It preserves fossils dating back to the Silurian period.

The Cape Deceit Formation is a geologic formation in Alaska. It preserves fossils.

The Lisburne Group is a geologic group in Alaska. It preserves fossils dating back to the Carboniferous period.

The Nanushuk Group is a geologic group in Alaska. It preserves fossils dating back to the Cretaceous period.

References