Triceratops

Triceratops (meaning "three-horned face") is a fearsome foe from the Cretaceous. Despite being a herbivore, it is equipped with three tough horns and a frill for protection or showing off. A rhinoceros is no match for this seemingly gentle giant. T. rex though...

Experts say that there were several animals such as styracosaurs that are similar to Triceratops. This has since been proven to be a hoax.