Outline: a typical sauropod

Allen Fm., ArgentinaNamed 1987

Aeolosaurus

ee-OH-loh-SORE-us

"Aeolus's lizard"

Type species Aeolosaurus rionegrinus

Lived
84 to 66 million years ago, Late Cretaceous
Diet
Herbivore
Group
Sauropods
Found in
Argentina, Brazil and Uruguay
Named by
Powell 1987

Where its fossils were found

The evidence

Today

6 finds

75 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Aeolosaurus

What it was like

Aeolosaurus was a titanosaur, a long-necked plant eater from the southern continents. The spines on its tail bones leaned forward, a feature that may have helped support strong tail muscles. No skull has been found, so its head is still unknown.

Its world

It lived in the Late Cretaceous in what is now Argentina and Brazil, and it has also been reported from Uruguay. Its bones come from several rock layers, including the Angostura Colorada and Allen formations. In the Allen Formation it lived near the raptor Austroraptor.

How it was found

Powell named Aeolosaurus in 1987. The type species is Aeolosaurus rionegrinus. Bones of several individuals have been found, and more than one species has been named, which makes it one of the better known titanosaurs.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Aeolosaurini

Sources: WikidataNamed in: J. E. Powell. 1987. The Late Cretaceous fauna of Los Alamitos, Patagonia, Argentina part VI—the titanosaurids. Revista del Museo Argentina de Ciencias Naturales "Bernardino Rivadavia" e Instituto Nacional de Investigacion de las Ciencias Naturales: Paleontología 3(3):147-153