Diceratherium

Diceratherium was a Miocene Epoch rhinoceros like mammal. The major distinction was that its horns were side by side on its nose rather than in a row along it.

Harvey Cutter, who had traveled back ten million years to Miocene Italy to capture live specimens of primates for the San Diego Cenozoic Zoo, observed a pack of Cynodesmus hunt and bring down a Diceratherium.