Argentinosaurus

Say it like this: “ahr-jen-TEEN-o-SAWR-us”

Argentinosaurus huinculensis

Argentinosaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Argentina.

Quiz me on Argentinosaurus

When: Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago
Named in: 1993 · Bonaparte, J. F.; Coria, R. A.
Hip height: Not established
Length: 35 m · 115 ft
Weight: 100 tonnes
Found in: Argentina · Huincul
Food and walking: Herbivore · Four legs
Kind: long-neck giant · Sauropod
Family branch: Lognkosauria

The story in short

In 1993, J. F. Bonaparte and R. A. Coria published the name Argentinosaurus. The name means “lizard from Argentina.”

Fossils referred to Argentinosaurus date to the Late Cretaceous (Cenomanian · Turonian), roughly 100.5 to 89.8 million years ago. Finds come from Argentina, including the Huincul Formation. It was a herbivore and walked on four legs.

Published estimates put Argentinosaurus at a length near 35 m and a body mass around 100 tonnes.

On the family tree it sits in Lognkosauria, among the sauropod dinosaurs.

Close relatives

Drusilasaura

Drusilasaura deseadensis

Late Cretaceous (Cenomanian · Turonian) · roughly 100.5 to 89.8 million years ago

Futalognkosaurus

Futalognkosaurus dukei

Late Cretaceous (Turonian · Coniacian) · roughly 93.9 to 85.7 million years ago

Mendozasaurus

Mendozasaurus neguyelap

Late Cretaceous (Coniacian) · roughly 89.8 to 85.7 million years ago