The Longhorn Bison (Bison latifrons), also known as the Giant Bison or Giant North American bison, is an extinct species of bison that lived in Late Pleistocene North America until around 20,000–30,000 years ago.
Thought to have been extinct for 10,000 years, large herds still roam on Primeval Island. In fact, they are among the most common ungulates there, alongside Megaloceros, Camelops, and the Aurochs. They are the second largest ungulate on the island as well.