From Ohio History Central
Fossil remains of large carnivores are generally less common than remains of herbivores because of lesser abundance of the predators. Fragmentary remains of the short-faced bear, Arctodus simus, were found at Indian Trail Caverns and a skull of a grizzly bear, Ursus arctos, was found in Butler County. So far, fossils of the saber-toothed cat, Smilodon fatalis, and dire wolf, Canis dirus, have not been found in Ohio but it is likely that both species lived here because their remains have been found in nearby states. The small number of Pleistocene cave sites in Ohio probably accounts for lack of a fossil record of these animals in Ohio.