Iguanodonwas the first plant-eating dinosaur ever discovered, and the second dinosaur to be named. A sharp spike on its thumb provided a useful defensive weapon against predators. It occupied Europe during the Early Cretaceous, 125 million years ago.Scient
Iguanodonwas the first plant-eating dinosaur ever discovered, and the second dinosaur to be named. A sharp spike on its thumb provided a useful defensive weapon against predators. It occupied Europe during the Early Cretaceous, 125 million years ago.
History
The history ofIguanodongoes back almost 200 years. The first fossil remains ofIguanodonwere collected in the 1820s from the gravels of Tilgate Forest in southern England. The fossils consisted of large teeth, similar is shape to those of a modern iguana, but much larger. These fossils were amongst the first dinosaur remains ever found. However, at that time nobody knew what a dinosaur was!
The teeth, along with some other isolated bones, were given the nameIguanodonin 1926. The name means iguana tooth. It was thought to be a giant reptile but, since this was before the word dinosaur was even invented, the early paleontologists had a difficult task reconstructingIguanodonfrom its fragmentary fossils. It was originally thought to be a lumbering four-legged monster, similar to an iguana, with a horn on its nose. Later discoveries of complete articulated skeletons led to it being regarded as a biped with a posture more like a kangaroo.
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