Lecture & Reading Guide for the Marginocephalia (the "Frilled" dinosaurs) Suborder Ceratopsia & Subrder Pachycephalosauria What Key Evolutionary Novelties/ Unique Characteristics are shared by the Marginocephalia

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• Late Cretaceous
• Cretaceous
• Geological history of Earth
• Marginocephalia
• Chasmosaurines
• Ceratopsia
• Ceratopsians
• Triceratops
• Dinosaur
• Pachycephalosauria
• Chaoyangsauridae
• Cerapoda