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Jaxartosaurus (meaning “Jaxartes River Lizard”) is a genus of lambeosaurine hadrosaurid dinosaur from the Late Cretaceous of Kazakhstan and China. The generic name is derived from the Jaxartes River in Kazakhstan. It had a large, rounded crest on it’s head, similar to Hypacrosaurus or Corythosaurus.¬†Anatoly Nikolaaenvich Riabinin described the type species, J. aralensis, in 1937. Aralensis is derived from the Aral Mountains, next to the Jaxartes River. In 1990, Jack Horner described a second, dubious species called J. ¬†fuyuensis. The length is estimated at 30 feet (9 metres), making this a very large hadrosaur. Other than this, not that much is known about this genus.

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