
Scelidosaurus
"limb lizard"
DV-0018
- Lived
- 200 to 184 million years ago, Early Jurassic
- Diet
- Herbivore
- Length
- about 4 m (13 ft)
- Group
- Early armored dinosaurs, Scelidosauridae
- Found in
- United Kingdom
- Named by
- Owen 1859
Field notes
About Scelidosaurus
What it was like
Scelidosaurus was a heavily built, plant-eating dinosaur that walked on four sturdy legs. Rows of bony studs, called scutes, ran in long lines along its neck, back, and tail, giving it light but effective body armor, even though it lacked the heavy clubs and spikes seen in later armored dinosaurs. It had a small head with a horny beak at the front of the jaws, used to crop low-growing plants that were then broken down in a large gut. Scelidosaurus grew to about 4 meters (13 feet) long.
Its world
Scelidosaurus lived from about 200 to 184 million years ago, during the Early Jurassic, in what is now the United Kingdom. Its fossils come from the Charmouth Mudstone Formation on the English coast, and related remains have also been reported from China.
How it was found
Owen named Scelidosaurus in 1859, based on some of the earliest good dinosaur fossils ever found in the United Kingdom. Eleven fossil finds are known today, including skeletons preserved in remarkable detail, which makes Scelidosaurus one of the best-known early armored dinosaurs despite its age. Even so, its exact place in the dinosaur family tree has been debated for a long time, with some researchers linking it closely to the ankylosaurs and others to the stegosaurs.
The evidence
Where its fossils were found
Today
190 million years ago
To scale
How big was Scelidosaurus?
Close relatives
Other members of Scelidosauridae.
Sources: Paleobiology Database, WikidataNamed in: R. Owen. 1859. Palaeontology. The Encyclopaedia Brittanica, or Dictionary of Arts, Sciences, and General Literature (8th Edition) 17:91-176