Coryphodon is a prehistoric animal that lived in the Paleocene and Eocene epochs, about 66 to 34 million years ago. It was a large, herbivorous mammal that resembled a hippopotamus and had a prominent, dome-shaped head. Some synonyms that have been used to describe Coryphodon include "beast of prey," "chief tooth," and "domed-tooth." These names all refer to some aspect of the animal's physical appearance or behavior. Despite its large size and fearsome-sounding names, Coryphodon was actually a gentle giant that posed no threat to humans or other animals. Its fossils have been found on several continents and provide valuable insights into the evolution of early mammals.