Fig. 4 in An Early Miocene Dome-Skulled Chalicothere from the ''Arikaree'' Conglomerates of Darton: Calibrating the Ages of High Plains Paleovalleys Against Rocky Mountain Tectonism

Fig. 4. Principal fossil mammal localities (indicated by arrows) in the capping sandstones of the Patrick Buttes. Cow Trail Notch at East Sturdivant Butte and sites at Merycochoerus Butte have yielded most of the age­diagnostic specimens in the early Hemingfordian Carpenter Ranch Formation. Deahl Butte produced the partial dome and mandible of the chalicothere (UNSM 44800, 44801). Barstovian sites in the Spoon Butte Beds include South Rim, GF Butte, North Point and Box Canyon. The Oberg Quarries are gravel pits containing waterworn mid­ and late Miocene mammals and Pleistocene Equus.