A huge prehistoric animal that resembles the rhinoceros with large, forked horns

A titanothere is a huge prehistoric animal that resembles the rhinoceros; adults average 10' tall and 13' long. They have large, forked horns rather than the pointed horns of rhinos. Like rhinos, they are herd animals, and males aggressively defend the herd; females only enter combat if the male(s) are defeated or the attackers are very numerous. If a single titanothere is encountered, it will be a rogue male; they are bad tempered and prone to attacking smaller creatures that enter their territory.

Giant (12' at the shoulder), ancient relatives of the rhinoceros, with massive, blunt horns. Eat grass and tree leaves. Dwell in small herds in Lost World grasslands.