Hyaenodon

Hyaenodon (Hyaenodon gigas) was a fierce, brawny, fearsome predator that lived in the Oligocene period. They had exceedingly sharp teeth. Hyaenodon means "hyena toothed". Their teeth were so strong, they enabled the hyaenodon to consume every single thing on a carcass. Their teeth even allowed them to eat the teeth on the kill.

They were mammals and they have no closest living relatives now. They were quite successful mammals. The bones were found in Mongolia, and North America. The largest type of Hyaenodon was Hyaenodon giagas. They lived about 41-25 million years ago.

Hyaenodon were huge. They probably had a very keen sense of smell. The big species were as big as small rhinos, and that it very big. They weren't related to hyenas, even though their name was hyaenodon. They could eat Chalicotheres, another kind of animal in the Oligocene period. They were very eerie predators.