Outline: a typical stegosaur

Los Molles Fm., ArgentinaNamed 2017

Isaberrysaura

Lived
171 to 169 million years ago, Middle Jurassic
Diet
Herbivore
Group
Stegosaurs, Huayangosauridae
Found in
Argentina
Named by
Salgado et al. 2017

Where its fossils were found

The evidence

Today

1 find

170 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Isaberrysaura

What it was like

Isaberrysaura was an early relative of the stegosaurs, a plant eater with a nearly complete skull. Its stomach area held preserved seeds, which show what it had eaten.

Its world

It lived in the Middle Jurassic, in what is now Argentina. It comes from the Los Molles Formation, which formed in the sea, so its body was probably washed out from the coast. It is the first stegosaur relative known from South America.

How it was found

Salgado and colleagues named Isaberrysaura in 2017. It was first described as an early ornithopod, but later studies moved it close to Huayangosaurus.

Close relatives

Other members of Huayangosauridae

Sources: WikidataNamed in: L. Salgado, J. I. Canudo, and A. C. Garrido, M. Moreno-Azanza, L. C. A. Martínez, R. A. Coria, J. M. Gasca. 2017. A new primitive neornithischian dinosaur from the Jurassic of Patagonia with gut contents. Scientific Reports 7:42778:1-10