Triceratops, the "Three Horned Face," is a dinosaur of particular interest, being widely represented  in both entertainment and in the  fossil record. Its stout, powerful  body reached lengths of nine meters and heights of three meters.  Triceratops was a force of nature  few reckoned with, emblazoned with its mighty frill and horns. These  iconic ornaments grew as it reached maturity. Triceratops are commonly depicted using their head gear as  weapons, but recent theories that note the presence of blood vessels  in the skulls suggest that the frill was most likely used for courtship.  Triceratops shared the warm North American climates of the  Maastrichtian age of the Cretaceous with fearsome foes like the  Tyrannosaurus. In the event of a  confrontation, its horns could be  used to ward off or gore oppontents into submission. It lived in  relative harmony with other  herbivores during its reign before he mass extinction at the end of the Cretaceous. It browsed low-hanging  vegetation with its beak lined with  rows of teeth, which sheared leaves  off fibrous plants like palms,  ferns, and cycads. Due to the large  amount of Triceratops fossils that  have been found, it is safe to say  that Triceratops was one of, if not  the, most common herbivores of the  Period.