Outline: a typical sauropod

Bajo Barreal Fm., ArgentinaNamed 2016

Sarmientosaurus

"Sarmiento lizard"

Lived
101 to 90 million years ago, Late Cretaceous
Diet
Herbivore
Group
Sauropods
Found in
Argentina
Named by
Martínez et al. 2016

Where its fossils were found

The evidence

Today

1 find

95 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Sarmientosaurus

What it was like

Sarmientosaurus was a titanosaur, a long-necked, four-legged plant eater, known from a complete skull and part of the neck. Its large eye sockets and brain scans suggest it had good eyesight.

Its inner ears suggest it usually held its head low, feeding on plants close to the ground.

Its world

It lived in the Late Cretaceous in what is now southern Argentina. Its bones come from the Bajo Barreal Formation, where it shared the land with the hunter Xenotarsosaurus and the titanosaurs Epachthosaurus and Drusilasaura.

How it was found

Martínez and colleagues named Sarmientosaurus in 2016. Its skull is one of the most complete of any titanosaur.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Diamantinasauria

Sources: WikidataNamed in: R. D. F. Martínez, M. C. Lamanna, and F. E. Novas, R. C. Ridgley, G. A. Casal, J. E. Martínez, J. R. Vita, L. M. Witmer. 2016. A basal lithostrotian titanosaur (Dinosauria: Sauropoda) with a complete skull: implications for the evolution and paleobiology of Titanosauria. PLoS ONE 11(4):e0151661:1-82