Dino LessonLanzhousaurus is an ornithopod dinosaur that lived in what is now China during the Early Cretaceous. It has been estimated to be about 10 m in length and 6 t in weight. The teeth that have been preserved in the meter-long lower jaw of Lanzhousaurus have been described as “astonishingly huge", and at 14 centimeters in length each, are among the largest of any herbivorous creature ever. The teeth indicate it was a styracosternan iguanodont, and the tooth enamel of this dinosaur grew very rapidly.
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