Triceratops was an herbivore from the Cretaceous. It used its tough beak to eat low-lying green plants. With hundreds of teeth in its jaws, this animal sliced its food into bite sized chunks. It lived during the Cretaceous period in Western North America. It was also a very heavy dinosaur compared to its 33 foot (10 metre) size, up to 13 tonnes in weight! The most notable Triceratops is Trudy, Tank, Tuck, Pod and Hermen.