What is a brontotherium?
Brontotherium means thunder animal. It was a massive mammal similar to a rhinoceros, with a forked horn on its snout. Many fossils of this animal have been determined in South Dakota and Nebraska in the USA. Often, they were located after the soil protecting the fossil had been washed away with the aid of using a large rainstorm. That is how the prehistoric beast got here to be called the thunder animal.
