The dinosaur with 500 teeth is called the **Nigersaurus** . It was a long-necked dinosaur that lived about 120 million years ago. It had a wide muzzle filled with more than 500 teeth. The jaws may have borne a keratinous sheath. Unlike other tetrapods, the tooth-bearing bones of its jaws were rotated transversely relative to the rest of the skull, so that all of its teeth were located far to the front. The unique dinosaur was getting famous for having 500 teeth plus a virtuously herbivorous diet.
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The **Nigersaurus** was a long-necked dinosaur that lived about *120 million years ago* and had a *virtuously herbivorous diet*.
