Outline: a typical early ornithischian

Shaximiao Fm., ChinaNamed 1979

Yandusaurus

"Yandu lizard"

Lived
171 to 168 million years ago, Middle Jurassic
Diet
Herbivore
Length
about 3 m (10 ft)
Group
Early ornithischians
Found in
China
Named by
He 1979

Size comparison

To scale

Where its fossils were found

The evidence

Today

2 finds

170 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Yandusaurus

What it was like

Yandusaurus was a small, two-legged plant eater about 3 meters (10 feet) long. It had long legs for running and a beak with leaf-shaped teeth.

Its world

It lived in the Middle Jurassic in what is now China. Its bones come from the Shaximiao Formation, where it shared the land with the long-necked Shunosaurus, the stegosaur Huayangosaurus and the hunter Yangchuanosaurus.

How it was found

He named Yandusaurus in 1979. Two finds are known.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Neornithischia

Sources: WikidataNamed in: P. C. Sereno. 1986. Phylogeny of the bird-hipped dinosaurs (order Ornithischia). National Geographic Research 2(2):234-256