Ramoceros

Ramoceros osborni was a relative of the modern pronghorn, albeit much smaller only weighing 20 kilograms. It's horns are shaped like deer antlers and were likely used for infighting and/or self-defense. Ramoceros lived from the Miocene to the Pliocene. While small, it was likely a fast runner that could readily escape from predators such as bear dogs. Its name means 'branch horns of Osborn.'