Mythosaurs were a species of animal native to the Outer Rim world of Mandalore. Enormous in size, the mythosaurs dominated their world until the arrival of the Mandalorian Taung, led by the warrior known as Mandalore the First. In a campaign to conquer the world for their own, Mandalore the First and his crusaders slaughtered the gigantic beasts and drove them to extinction. The skull of the mythosaur became the symbol of the Mand'alor—the traditional ruler of all the Mandalorian clans—the planet Mandalore, and of the Mandalorians themselves for generations after.