Argentinosaurus was a massive plant-eater (herbivore) that lived in South America
(its fossils were
discovered in Argentina) during the
Cretaceous period,
around about 100 million years ago.
Early estimates for the creature, sized it at a length of around 114 feet (34.6 meters).
However more recent research, and comparison with Titanosaur relatives, have
now led scientists to conclude the animal was around 72 to 98 feet (22 to 30 meters)
in length, and weighed around 60 to 90 tons. Even at this reduced size, it is still one
of the heaviest
Sauropods known.
"Argentinosaurus" means "silver lizard" - "silver" is a reference to the country of Argentina (which is also derived from the Latin word for silver), where the creature was first discovered.
Argentinosaurus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Argentinosaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
Argentinosaurus was a Sauropod - a member of a group of related large quadrupedal herbivorous (plant-eating) dinosaur with long necks.
Argentinosaurus lived about 100 million years ago, during the Cretaceous period.
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