Fossil Sites

• England, Belgium, Germany,(Eur.), Utah (U.S.A.), Tunisisa (Africa), Mongolia (Asia).

Geologic Age

• Early Cretaceous

Paleo Notes

Iguanodon was the second dinosaur to be discovered. In 1809, it's shin bone was found in Southern England. Gideon Mantell, a geologist, named the animal and attempted it's restoration . The "spike" he wrongly placed on Iguanodon's snout like a horn instead of recognizing it as a "thumb".
The purpose of this "thumb spike" is not clearly known. It could have been for tearing down foliage, or it may have been used for defense against predators.

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