Stegoceras: quick facts

First discovered in Montana and Alberta, Canada, Stegoceras is the best known of all North American "bone-head"dinosaurs. The relatively large brain of this dinosaur was encasedin a dome of 3 inches (

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Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.