Chasmosaurinae

The Chasmosaurinae were a lineage of Ceratopsidae dinosaurs that lived during the Cretaceous Period. These plant-eating dinosaurs were characterized by large bony frills on the back of their skulls and horns. Specifically, Chasmosaurinae had large horns above their eyes and smaller horns on their noses. Famous examples of Chasmosaurinae include Triceratops and Torosaurus. Unlike some other ceratopsians, Triceratops had a solid, relatively short frill. The frills of other chasmosaurines were larger and often had openings in the center. These dinosaurs are known for their large heads, which constituted a significant portion of their body length.12