Torosaurus

Torosaurus was a large herbivorous dinosaur that lived in North America in the Late Cretaceous period, about 67 million years ago. Known for its distinctive elongated & holed frill, this animal possesses the largest skull of any land animal ever. Despite this, the animal was more lightly built than its cousin, Triceratops, who it cohabitated with. Torosaurus also possessed two large horns over the eyes & a stunted triangular boss on the nose. It would have used these in defense against its only predator, T. rex.