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Temporal range: Upper Cretaceous
Skeletal reconstruction at the Naturmuseum Senckenberg
Scientific classification
Kingdom: Animalia
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
(unranked): Titanosauria
Genus: Argentinosaurus
Bonaparte & Coria, 1993

Argentinosaurus was a titanosaurid sauropod dinosaur. It was an enormous, long-necked, long-tailed, quadrupedal, plant-eater from Argentina, South America during the Cretaceous period.

Argentinosaurus meaning "Argentina lizard", was named by paleontologists Coria & José Bonaparte in 1993. It is known from fossilized back vertebrae, tibia, ribs and sacrum. It may be the largest dinosaur,[1] but its remains are so incomplete that palaeontologists prefer to use Saltasaurus for their calculations. An accurate estimate was got for the much more complete sub-adult Dreadnoughtus.[2][3]

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