Marginocephalian is a term used to describe a group of herbivorous dinosaurs that existed during the late Jurassic and early Cretaceous periods. Some popular synonyms for this term include cerapods, marginocephs, and ceratopsians, which are all commonly used to describe these creatures in scientific discussions and literature. Additionally, the term frilled dinosaurs is often used to describe specific species within this group, such as Triceratops and Styracosaurus. While these terms all refer to this specific group of dinosaurs, they may differ in their specificity and scope. Regardless of the terminology used, marginocephalians are characterized by their distinctive skull adornments and were an important part of the evolution of the dinosaur kingdom.