Styracosaurus, a member of the ceratopsid family, was a herbivorous dinosaur from the Late Cretaceous period, notable for its distinctive array of horns and spikes on its frill and snout. It roamed the lush floodplains of what is now North America, using its formidable horns possibly for defense or mating displays.

Styracosaurus was native to North America, specifically in what is now the northwestern part of the continent during the Late Cretaceous period, approximately 75 to 76.5 million years ago. Fossils have been predominantly found in the Dinosaur Park Formation of Alberta, Canada.

The habitat of Styracosaurus during the Late Cretaceous was characterized by a warm, semi-arid climate with distinct wet and dry seasons. The environment included river floodplains, coastal lowlands, and lush forests with a variety of plant life, such as conifers, ferns, and cycads.

Styracosaurus was a herbivorous dinosaur that likely fed on low-lying vegetation. Its ecological niche involved browsing for plants, which it could process with its strong beak and complex dental structure. The species might have moved in herds, providing protection against predators and aiding in efficient foraging.