KnowraPachycephalosauriaLinked fromLinked fromThe 6 pages that link to Pachycephalosauria, each with the reason it gives.All 6Broader topic 2Narrower topic 2Compared with 2AnkylosauriaCompared with: This ornithischian lineage evolved a different defensive anatomy from ankylosaurs.Cranial ornamentationBroader topic: Their reinforced skull roofs exemplify cranial thickening and ornamentation.PachycephalosaurusNarrower topic: Pachycephalosaurus is the best-known genus in this group of dome-headed dinosaurs.MarginocephaliaBroader topic: This is Marginocephalia’s other principal branch.StegocerasNarrower topic: Stegoceras belongs to this group of dome-headed dinosaurs.YinlongCompared with: It is a neighboring ornithischian lineage, distinct from Yinlong’s ceratopsian branch.