**Oregon Bison (Bos bison oregonus)**

last killed ca. 1840 in Owyhee Mountains
sage steppe herd grazing herbivore ranged from Oregon to Idaho; westernmost bison subspecies
disappeared after hunting for hides
References:

Allen, G. M. Extinct and Vanishing Mammals of the Western Hemisphere QL715.A44 1942 p.344

Causes	Endangerment	Pleistocene Timing	Pleistocene Origin	101 Calendar
Historical Era	Birds Map	Mammals Map	References	358 Calendar

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