Real Torosaurus were large, thickly-built ceratopsians, dinosaurs that were related to Triceratops and that usually, but not always, had horns. In fact, Torosaurus was thought by some scientists to be the same animal as Triceratops, although this theory has since been rejected. It had one of the largest skulls of any land animal, living or extinct. Its name means "perforated lizard".