Outline: a typical early ornithischian

Chinle Fm., ColoradoNamed 2019

Kwanasaurus

"eagle lizard"

Lived
227 to 201 million years ago, Late Triassic
Diet
Herbivore
Group
Early ornithischians, Silesauridae
Found in
United States
Named by
Martz and Small 2019

Where its fossils were found

The evidence

Today

6 finds

210 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Kwanasaurus

What it was like

Kwanasaurus was a silesaur, a slender, four-legged plant eater from a group close to the first dinosaurs. It had a deep, strong skull and teeth suited to chewing plants.

Some scientists think silesaurs were early relatives of the ornithischian dinosaurs; others think they sat just outside the dinosaurs.

Its world

It lived in the Late Triassic in what is now Colorado, in the United States. Its bones come from the Chinle Formation, where it shared the land with the early meat eaters Coelophysis and Chindesaurus.

How it was found

Martz and Small named Kwanasaurus in 2019. Six finds are known.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Silesauridae

Sources: WikidataNamed in: J. W. Martz and B. J. Small. 2019. Non-dinosaurian dinosauromorphs from the Chinle Formation (Upper Triassic) of the Eagle Basin, northern Colorado: Dromomeron romeri (Lagerpetidae) and a new taxon, Kwanasaurus williamparkeri (Silesauridae). PeerJ 7:e7551:1-71