What Dinosaur Has 500 Teeth? (Answer Explained Simply)

What Dinosaur Has 500 Teeth?

If you’re searching “what dinosaur has 500 teeth?”, the answer is: Nigersaurus.

Quick answer: The dinosaur known for having around 500 teeth is Nigersaurus, a plant-eating dinosaur that lived about 110 million years ago in what is now Niger, West Africa.

Nigersaurus had a highly unusual skull and hundreds of small, replaceable teeth arranged in rows at the front of its mouth.

What Is Nigersaurus?

Nigersaurus was a herbivorous sauropod dinosaur that lived during the middle Cretaceous Period, around 110 million years ago.

Its fossils were discovered in Niger, West Africa, and its name simply refers to that region. Unlike larger sauropods such as Brachiosaurus, Nigersaurus had a lighter build and a very specialised skull.

A relatively short neck compared to other sauropods
A lightweight skull with large openings
A wide, straight-edged mouth packed with many small teeth

Did Nigersaurus Really Have 500 Teeth?

Yes — but this includes both visible teeth and replacement teeth.

Nigersaurus had a system called dental batteries, where teeth were constantly replaced as they wore down.

Hundreds of narrow teeth lined the front of its jaws
Replacement teeth sat behind each active tooth
New teeth continuously moved forward as older ones wore out
Total count (including replacements): about 500 teeth

This setup allowed Nigersaurus to efficiently feed on low-growing plants, almost like a natural lawn mower.

How Big Was Nigersaurus?

Length: around 9–10 metres
Weight: similar to a large elephant

While not as massive as some sauropods, its skull and teeth structure made it one of the most unusual dinosaurs discovered.

Where and When Did It Live?

Nigersaurus lived in a region that is now Niger, West Africa, during a time when the area had lush vegetation, rivers, and floodplains.

It was discovered and studied by paleontologists including Paul Sereno, whose team helped reveal its unique skull structure.

Why Is This Question So Popular?

The question “what dinosaur has 500 teeth?” became widely searched online, sometimes for reasons unrelated to science.

It’s important to understand:

Nigersaurus is a legitimate scientific name
It is named after the country Niger
The name is used in a normal scientific context by researchers and museums

The focus should remain on its unique biology and fossil discoveries.

Summary

The dinosaur with around 500 teeth is Nigersaurus
It was a plant-eating sauropod
It had constantly replacing teeth arranged in dental batteries
It likely fed on low-growing vegetation

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