This ancient dinosaur, Styracosaurus, lived during the late Cretaceous period, approximately 75 million years ago. It was a large, herbivorous dinosaur that was characterized by its distinctive spiked frill and long horns on its head. Styracosaurus was
From Wikipedia
Styracosaurus is an extinct genus of herbivorous dinosaur from the Late Cretaceous of North America. It had four to six long parietal spikes extending from its neck frill, a smaller jugal horn on each of its cheeks, and a single horn protruding from its nose, which may have been up to 60 centimeters long and 15 centimeters wide. The function or functions of the horns and frills have been debated for many years.