Hylaeosauruss: quick facts

Hylaeosaurus had rows of horny, triangular-shaped spines running down its back. For further protection againstpredators, its hips were covered with a bony plate. Hylaeosaurusis one of the first three

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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.