Outline: a typical early dinosaur

Ischigualasto Fm., ArgentinaNamed 2010

Sanjuansaurus

"San Juan lizard"

Lived
237 to 227 million years ago, Late Triassic
Group
Early dinosaurs, Herrerasauridae
Found in
Argentina
Named by
Alcober and Martínez 2010

Where its fossils were found

The evidence

Today

1 find

230 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Sanjuansaurus

What it was like

Sanjuansaurus was an early two-legged predator from the herrerasaurid family. It is known from a partial skeleton, with parts of the skull, backbone, hips and limbs. It was a close relative of Herrerasaurus.

Its world

It lived in the Late Triassic in what is now Argentina. Its bones come from the Ischigualasto Formation, home to some of the earliest known dinosaurs, including Herrerasaurus and Eoraptor.

How it was found

Alcober and Martínez named it in 2010 from one find. It is named after the province where it was found.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Herrerasauridae

Sources: WikidataNamed in: O. A. Alcober and R. N. Martínez. 2010. A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina. Zookeys 63:55-81