Rubeosaurus gets its name from the Greek words “bramble lizard.” This dinosaur was discovered in the upper Two Medicine Formation in Montana. The Rubeosaurus lived in North America during the Late Cretaceous Period, more than 74 million years ago.
The first Rubeosaurus fossils were found in 1928. This giant dinosaur was nearly twenty feet long and weighed up to six tons. This dinosaur walked on all four legs and ate a plant-based diet. Rubeosaurus resembled the Triceratops in that it had a large skull with a frill and horns. Its snout featured a prominent horn that was several feet long.