Outline: a typical sauropod

Huincul Fm., ArgentinaNamed 2023

Chucarosaurus

"untamed lizard"

Type species Chucarosaurus diripienda

Lived
110 to 106 million years ago, Early Cretaceous
Diet
Herbivore
Group
Sauropods
Found in
Argentina
Named by
Agnolin et al. 2023

Where its fossils were found

The evidence

Today

1 find

110 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Chucarosaurus

What it was like

Chucarosaurus was a large titanosaur, a long-necked plant eater. It is known from limb and hip bones, which were long and slender for such a big animal. Its closest relatives include Notocolossus and Puertasaurus.

Its world

It lived about 110 to 106 million years ago, in the Cretaceous, in what is now Argentina. Its bones come from the Huincul Formation, home to giants such as Argentinosaurus and predators such as Mapusaurus, Meraxes and Skorpiovenator.

How it was found

Agnolin and colleagues named it in 2023. The type species is Chucarosaurus diripienda.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Colossosauria

Sources: WikidataNamed in: F. L. Agnolin, B. J. Gonzalez Riga, and A. M. Aranciaga Rolando, S. Rozadilla, M. J. Motta, N. R. Chimento, F. E. Novas. 2023. A new giant titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Northwestern Patagonia, Argentina. Cretaceous Research 146:105487