Outline: a typical early dinosaur
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
230 million years ago
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


