Bridger Formation

BridgerBridger Basin
The Bridger Formation is a geologic formation in southwestern Wyoming.wikipedia
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Miacis

Miacis hargeriMiacis igniculusMiacis sylvestris

Patriofelis

Patriofelis ferox
It is found in particular in the Bridger Basin of southwestern Wyoming and at John Day Fossil Beds National Monument, in the U.S. state of Oregon.

Saniwa

Saniwa ensidens
It is known from well-preserved fossils found in the Bridger and Green River Formations of Wyoming, and evidence indicates Saniwa also lived in Europe.

Spathorhynchus

Spathorhynchus fossoriumSpathorhynchus natronicus
fossorium, named in 1973 from the Middle Eocene Bridger and Wind River Formations, and the species S.

Wyoming

WYState of WyomingWyoming, USA
The Bridger Formation is a geologic formation in southwestern Wyoming.

Fossil

fossilsfossil recordfossilized
It preserves fossils dating back to the Ypresian Epoch of the Paleogene Period.

Epoch (geology)

epochepochsgeological epoch
It preserves fossils dating back to the Ypresian Epoch of the Paleogene Period.

Paleogene

PalaeogenePaleogene PeriodLower Tertiary
It preserves fossils dating back to the Ypresian Epoch of the Paleogene Period.

Geological period

periodperiodsgeologic period
It preserves fossils dating back to the Ypresian Epoch of the Paleogene Period.

Fort Bridger

namesake historic fortBridgerFort Bridger State Historic Site
The formation was named by American geologist Ferdinand Vandeveer Hayden for Fort Bridger, which had itself been named for mountain man Jim Bridger.

Jim Bridger

Bridger, JimBridger Trail
The formation was named by American geologist Ferdinand Vandeveer Hayden for Fort Bridger, which had itself been named for mountain man Jim Bridger.

Bridger Wilderness

BridgerBridger Wilderness Area
The Bridger Wilderness covers much of the Bridger Formation's area.

Crow people

CrowCrow NationCrow tribe
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Bannock people

BannockBannocksBannock Indians
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Eastern Shoshone

PohogwePohoiniEastern Shoshone people
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Arapaho

ArapahoeNorthern ArapahoArapahos
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Sioux

DakotaSioux IndianSiouan
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Cheyenne

CheyennesCheyenne IndiansCheyenne people
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Ute people

UteUtesUte tribe
Before colonization, the lands making up the Bridger Formation had been inhabited by the Apsáalooke, Bannock, Eastern Shoshone, Hinono'eino, Očhéthi Šakówiŋ, Só'taeo'o, Tsétsêhéstâhese, and Ute nations.

Oregon Trail

OregonOregon National Historic TrailGreat Migration of 1843
European settlers began to settle the area around the Bridger Formation in the 19th century, beginning with the establishment of the Oregon Trail in 1830.

Louis Vasquez

Louis VásquezPierre Louis VasquezVasquez, Lou
Fort Bridger – for which the formation would later be named – was established in 1843 by Jim Bridger and Louis Vasquez.

Fort Bridger Treaty Council of 1868

Fort Bridger Treaty of 1868Treaty of Fort BridgerFort Bridger Treaty
In 1868, the remaining Indigenous communities in the area were displaced by the Treaty of Fort Bridger, removing them to the Fort Hall Indian Reservation and Wind River Indian Reservation.

Fort Hall Indian Reservation

Fort Hall ReservationShoshone-BannockShoshone-Bannock Tribes of the Fort Hall Reservation of Idaho
In 1868, the remaining Indigenous communities in the area were displaced by the Treaty of Fort Bridger, removing them to the Fort Hall Indian Reservation and Wind River Indian Reservation.