Triceratops is a large ceratopsian (horned and frilled herbivorous dinosaur) that lived in the late Cretaceous period 68-65 million years ago in North America. It filled a similar ecological niche to today's buffalo, roaming the grasslands in massive herds. Although an herbivore, it is one of the park's most dangerous animals. Reaching nearly 30ft in length and weighing up to 12 tons, its size alone makes for a formidable creature. Sporting a fiery temper and horns of over 3 feet in length, this is an animal deserving serious respect.