Question 1

How do you say Scelidosaurus?

Accepted Answer

You say it skel-EYE-doh-sore-us. The tricky part is the silent C at the start, so the word begins with a hard SK sound. Break it into four chunks: SKEL, then EYE, then doh, then sore-us. Say it out loud a couple of times and it starts to feel natural pretty quickly.

Question 2

What does Scelidosaurus mean?

Accepted Answer

Scelidosaurus means limb lizard, from the Ancient Greek words skelis meaning leg or limb and sauros meaning lizard. The scientist who named it, Richard Owen, chose this name because the limb bones were the clearest and best-preserved parts of the first fossils he examined. The species name harrisonii honors James Harrison, the fossil hunter who found the original specimens near Charmouth in England.

Question 3

How big was Scelidosaurus?

Accepted Answer

Scelidosaurus was about 13 feet long, which is roughly the length of a small car. It weighed somewhere around 550 pounds, making it about as heavy as a large male lion. It was not a giant by dinosaur standards, but it was solidly built and covered in armor, which made it a serious animal to reckon with despite its modest size.

Question 4

When did Scelidosaurus live?

Accepted Answer

Scelidosaurus lived during the Early Jurassic period, roughly between 199 and 175 million years ago. To put that in perspective, it was walking around about 130 million years before T. rex even existed. It is one of the oldest well-known armored dinosaurs in the fossil record, which makes it extremely important for understanding how that whole group of dinosaurs got started.

Question 5

Was Scelidosaurus related to Ankylosaurus?

Accepted Answer

Yes, Scelidosaurus and Ankylosaurus are both members of the broader armored dinosaur group called Thyreophora. Scelidosaurus is much older and more primitive, living about 130 million years before Ankylosaurus. Scientists believe Scelidosaurus sits near the base of the armored dinosaur family tree, possibly as an early relative of the lineage that eventually led to both ankylosaurs and stegosaurs.

Question 6

Where was Scelidosaurus found?

Accepted Answer

The most important Scelidosaurus fossils were found along the sea cliffs near Charmouth in Dorset, England. This coastline is part of the famous Jurassic Coast, a UNESCO World Heritage Site known for producing extraordinary fossils. Possible Scelidosaurus material has also been reported from China, which would suggest the animal had a much wider range than previously thought.

Question 7

What did Scelidosaurus eat?

Accepted Answer

Scelidosaurus was a herbivore, meaning it ate plants. It had small, leaf-shaped teeth well suited to cropping low-growing vegetation like ferns. Scientists who studied microscopic wear patterns on its fossilized teeth in 2020 found evidence that Scelidosaurus chewed its food with a surprisingly precise and controlled motion, which is more sophisticated than many other dinosaurs of its era managed.

Question 8

Did Scelidosaurus have armor?

Accepted Answer

Yes, Scelidosaurus was covered in bony armor plates called osteoderms, which were embedded directly in its skin. These ranged from small rounded nodules to larger keeled scutes that ran in rows along its back and sides. The armor worked similarly to the skin of a modern crocodile or armadillo, and it would have made Scelidosaurus very difficult and painful for a predator to bite.

Question 9

Who discovered Scelidosaurus?

Accepted Answer

The first fossils were found by a fossil collector named James Harrison near Charmouth on the Dorset coast of England around 1858. Harrison passed the material to the famous scientist Richard Owen, who formally described and named Scelidosaurus in 1861. Owen honored Harrison by naming the species Scelidosaurus harrisonii after him. Owen is also the scientist who invented the word dinosaur itself.

Question 10

Is Scelidosaurus a rare dinosaur?

Accepted Answer

Scelidosaurus is not the most common dinosaur in the fossil record, but it is known from some remarkably complete specimens. A nearly complete skeleton found eroding from the cliffs at Charmouth in the 1990s is one of the best-preserved Early Jurassic dinosaur skeletons in the world. It preserves skin impressions and armor details that most dinosaur fossils simply do not show, making it scientifically very valuable.

Question 11

Could Scelidosaurus walk on two legs?

Accepted Answer

Scelidosaurus was primarily a four-legged, or quadrupedal, dinosaur. It walked on all fours with a low, sturdy body posture suited to browsing on ground-level plants. Some scientists have suggested that juveniles or lighter individuals might have occasionally reared up briefly, but Scelidosaurus was built for a four-legged life and its body proportions strongly support that.

Question 12

How does Scelidosaurus compare to Stegosaurus?

Accepted Answer

Both Scelidosaurus and Stegosaurus belong to the armored dinosaur group Thyreophora, but Scelidosaurus is far older, simpler, and smaller. Stegosaurus lived about 155 million years ago with its iconic tall back plates and spiked tail, while Scelidosaurus lived nearly 40 million years earlier with flatter, more even rows of bony scutes. Think of Scelidosaurus as something like the humble ancestor that came long before Stegosaurus evolved its dramatic features.

Scelidosaurus Pronunciation

What does Scelidosaurus mean?

Name Roots

Fun Facts

Learn More About Scelidosaurus

Related Dinosaurs