Stomias
History of the greenback cutthroat trout (Oncorhynchus clarki stomias) Approximately 2 million years ago, towards the beginning of the Pleistocene epoch, a group of coastal salmonids found their way inland by way of the Columbia River basin. These salmonids remained inland untouched and left to evolve into coastal, westslope, Lahontan, and Yellowstone cutthroat trout. The Yellowstone cutthroatsâŠ
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