It was a medium-sized nodosaurid, measuring about 5 meters (16.5 ft) long. "Sauropelta" had a distinctively long tail which made up about half of its body length. Although its body was smaller than a modern black rhinoceros, "Sauropelta" was about the same mass, weighing in at about 1,500 kilograms (3,300 lb). The extra weight was largely due to its extensive armour, including the large spines projecting from its neck.
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