This planet once played host to a massive dinosaur that packed more than 500 teeth into its jaws. That might sound like a terrifying prospect at first, but the creature in question wasn't a vicious beast with a mouth full of knives. It was a grazing herbivore called Nigersaurus taqueti and it only takes one glance to see why it is one of the most unusual dinosaur species ever discovered to date. Its skull looks like a binder clip, with teeth arranged in perfectly straight lines. It's so ... Do you know what dinosaur has 500 teeth ? In this post, you'll get to know all about this mysterious creature-Nigersaurus. Let's jump right in! Nigersaurus was a small sauropod dinosaur that lived in the Sahara Desert 110 million years ago. It had a wide, vacuum cleaner-like muzzle with hundreds of replaceable teeth for grazing on low-lying plants.