Triceratops (pronounce /traɪˈsɛrətɒps/) is an extinct genus of herbivorous ceratopsid dinosaur that lived during the late Maastrichtian stage of the Late Cretaceous Period, around 68 to 65 million years ago (mya) in what is now North America. It was one of the last dinosaur genera to appear before the great Cretaceous–Tertiary extinction event. Bearing a large bony frill and three horns on its large four-legged body, and conjuring similarities with the modern rhinoceros, Triceratops is one of the most recognizable of all dinosaurs. The name Triceratops, which literally means "three-horned face", is derived from the Greek tri/τρι- meaning "three", ceras/κέρας meaning "horn", and -ops/ωψ meaning "face". Though it shared the landscape with and was preyed upon by the fearsome Tyrannosaurus, it is unclear whether the two battled the way they are commonly depicted in movies, children's dinosaur books and many cartoons.