A New Species of Porcupine from the Later Cenozoic of Idaho

Abstract

One result of continued exploration for fossil vertebrates in the late Cenozoic sediments of the Snake River Valley by the United States National Museum was the discovery, during the summer of 1934, of a ramus of a fossil porcupine in deposits exposed near Grand View, Idaho. This specimen has been kindly loaned to me for study and description by Dr. C. Lewis Gazin. Interest attaches to the specimen since it represents not only the oldest Erethizon to be recorded from the North American region, but also the first remains of porcupines to be found in this area in beds other than cave or fissure accumulations.

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