What Dinosaur Had 500 Teeth? Meet the Nigersaurus

When it comes to dinosaurs, one of the most fascinating aspects is their teeth. From the fearsome Tyrannosaurus Rex with its large, sharp teeth to herbivorous dinosaurs with flatter, grinding teeth, these prehistoric creatures exhibit a wide range of dental arrangements. However, there’s one dinosaur that stands out from the rest due to its unique dental structure: the Nigersaurus. So, what dinosaur has 500 teeth? The answer is the Nigersaurus.

The Nigersaurus: A Unique Dinosaur With 500 Teeth

The Nigersaurus, often referred to as the “500 tooth dinosaur” or “500 teeth dinosaur,” is a genus of rebbachisaurid sauropodomorph dinosaur. It lived during the middle Cretaceous period, approximately 115 to 105 million years ago. This dinosaur was first discovered in the Republic of Niger, from which it gets its name.

The Nigersaurus is known for having more teeth than any other dinosaur discovered to date. But why does this dinosaur have 500 teeth? The answer lies in its diet and feeding habits.

Why Does the Nigersaurus Have 500 Teeth?

The Nigersaurus was a herbivore, and its mouth was designed to efficiently process plant material. Its jaw was shaped somewhat like a vacuum cleaner, enabling it to sweep up plants as it moved along. The vast number of teeth, arranged in up to 50 vertical columns and 10 horizontal rows, allowed it to grind down plant matter effectively.

Unlike many other dinosaurs, the Nigersaurus continuously replaced its teeth throughout its lifetime. This constant tooth replacement was necessary due to the wear and tear caused by its diet. In fact, it’s estimated that this dinosaur replaced each tooth every 14 days!

Other Fascinating Facts About the Nigersaurus

While the Nigersaurus is most famous for its 500 teeth, there are other interesting facts about this dinosaur. For instance, despite having a large number of teeth, they were quite small and thin, designed more for stripping vegetation rather than biting or chewing.

The Nigersaurus was also relatively small for a sauropod, measuring only about 9 meters (30 feet) in length. It had a short neck and a small, horse-like head, which is unusual for dinosaurs in the sauropod family. Its skeletal structure was also unique, with hollow bones making it lighter than other dinosaurs of similar size.

In terms of habitat, the Nigersaurus likely lived in lush floodplains, where it would have had access to plenty of vegetation. Its eyes and nostrils were positioned on top of its head, suggesting that it may have been a semi-aquatic dinosaur, spending a significant amount of time in water.

Nigersaurus: A Dinosaur With a Dental Difference

So, what is the name of the dinosaur with 500 teeth? It’s the Nigersaurus, a unique dinosaur with an extraordinary dental arrangement. Whether you’re intrigued by its 500 teeth, its unusual anatomy, or its intriguing lifestyle, there’s no denying that the Nigersaurus is a fascinating creature from our planet’s prehistoric past.

From “what dinosaur has 1,000 teeth” to “which dinosaur has the most teeth,” questions about dinosaur dentition often lead back to the Nigersaurus. While no dinosaur has been discovered with 1,000 teeth yet, the Nigersaurus, with its impressive 500 teeth, certainly comes close!

So next time someone asks you “what’s the name of the dinosaur with 500 teeth?” or “what dinosaur had 500 teeth?”, you can confidently answer: it’s the Nigersaurus.


The world of dinosaurs is filled with fascinating creatures, and the Nigersaurus is no exception. With its unique dental structure and intriguing lifestyle, this “500 tooth dino” offers a captivating glimpse into our planet’s prehistoric past. So, whether you’re a dinosaur enthusiast or just curious about these ancient creatures, remember the Nigersaurus – the dinosaur that truly stands out in the tooth department.

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