Jimomys labaughi, a new geomyoid rodent from the early Barstovian of North America. American Museum novitates ; no. 2591

Abstract

"Jimomys labaughi is a new genus and species of rodent of early Barstovian age. Morphology of the lower jaw, dentition, and incisor enamel indicates that the form is a geomyid. The crown pattern of the cheek teeth appears to be derived independently from one primitive to the superfamily. A species from the John Day Formation, Florentiamys lulli (Wood, 1936), has similar tooth morphology and is transferred to Jimomys"--P. [1].