Abstract

ABSTRACT A large new species of the antilocaprid genus Capromeryx has been recovered from Blancan sediments of the Taunton locality, southwestern Adams County, Washington. The complex history of the genus is briefly reviewed and Capromeryx tauntonensis, sp. nov., is described from cranial and dental elements. Intermediate in size between Capromeryx arizonensis Skinner and Antilocapra americana Ord, C. tauntonensis is the oldest and largest representative of the genus, and adds to a species series reaching from the mid-Blancan to the Rancholabrean. Based on expanded faunal evidence, the age of the Taunton l.f. is revised upward from equivalency with the lower Hagerman to a mid-Gauss correlation, intermediate between the Hagerman l.f. and Grand View l.f. of Idaho.

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