Iguanodont

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Probactrosaurus

Probactrosaurus

Probactrosaurus is an "iguanodont" dinosaur from the Late Cretaceous in Inner Mongolia, China.Probactrosaurus, or a form close to it, gave rise to the hadrosaurs, "duck-billed" dinosaurs, that populated much of latest Cretaceous Western North America and Asia. Probactrosaurus lived about 95 million years ago. At about the same time, other iguanodonts roamed the Western interior of the United States, including Arizona.