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Heterodontosaurus

Mounted skeleton of Giganotosaurus, a giant carnivorous dinosaur
Photo: Rjcastillo, CC BY-SA 4.0, via Wikimedia Commons
Pronunciation
het-er-uh-DON-tuh-SAWR-us
Name means
Different-Toothed Lizard
Diet
Herbivore
Posture
Quadrupedal
Period
Early Jurassic
Length
40 inches (0.9 meters)
Height
18 inches (0.45 meters)
Weight
10 pounds (4.5 kg)

Order: Ornithischia · Suborder: Ornithopoda · Family: Heterodontosauridae

Found in southern Africa, Heterodontosaurus was a small, primitive dinosaur with large eyes above a short face and an odd assortment of teeth that inspired its name "different-toothed lizard". It had three kinds of teeth

Triceratops skull showing the three horns and large bony frill
Photo: Vicpeters, CC BY 4.0, via Wikimedia Commons

More Jurassic-period dinosaurs →

Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.

Frequently asked questions

What does Heterodontosaurus mean?

The name Heterodontosaurus means “Different-Toothed Lizard”. It is pronounced het-er-uh-DON-tuh-SAWR-us.

When did Heterodontosaurus live?

Heterodontosaurus lived during the Early Jurassic.

Was Heterodontosaurus a carnivore or a herbivore?

Heterodontosaurus was a herbivore.

How big was Heterodontosaurus?

Heterodontosaurus was about 40 inches (0.9 meters) long, around 18 inches (0.45 meters) tall, weighing up to 10 pounds (4.5 kg).

Related dinosaurs

Other dinosaurs from the Heterodontosauridae family.

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