Erethizon dorsatum myops Merriam 1900 (North American porcupine)
Mammalia - Rodentia - Erethizontidae
Belongs to Erethizon dorsatum according to C. A. Woods 1973
Sister taxa: Erethizon dorsatum bruneri, Erethizon dorsatum couesi, Erethizon dorsatum dorsatum, Erethizon dorsatum epixanthus, Erethizon dorsatum picinum
Ecology: arboreal herbivore
Distribution: found only at Kangiguksuk (Quaternary of Alaska)