Polacanthus: quick facts

Polacanthus was an armoured dinosaur from the Early Cretaceous of England, one of the earliest such dinosaurs to be described. As its name suggests, it was heavily protected by numerous spines, partic

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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.