stegosaur
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stegosaur
or Stegosaurus
a quadrupedal herbivorous ornithischian dinosaur of the suborder Stegosauria, a large JURASSIC PERIOD reptile up to 9 m in length. Stegosaurs possessed large neural spines which supported very large, vertical, triangular plates of armour.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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