Dino LessonKentrosaurus is a genus of stegosaurid dinosaur from the Late Jurassic of Tanzania. Small for a stegosaur, adults measured around 4 m in length and weighed 700–1,600 kg. It had a small, elongated head with a beak used to bite off plant material that would be digested in a large gut. Kentrosaurus had a double row of small plates running down its neck and back, which merged into spikes on the hip and tail. The longest spikes were on the tail end and were used to actively defend the animal. There was also a long spike on each shoulder. The thigh bones come in two different types, suggesting that one sex was larger and more stout than the other.
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