115 to 150 feet (35m to 45 m)?
50 feet (16 m)?
80 tons (72,500 kilos)?
Middle Cretaceous - 110 MYA
Fossil remains for this Dinosaur have been found in
Argentinosaurus may have been the biggest dinosaur ever. Like some of the
other really huge dinosaurs, such as Ultrasauros
, very little of Argentinosaurus has been found, so it is hard to tell exactly
what it may have looked like. The only thing that is certain is that it was a
huge, long-necked plant eater.
Argentinosaurus was discovered by a
retired oil worker and was formally
described in 1993. The few bones include
hipbones, backbones, and a tibia (lower
leg bone). One vertebra was over four
feet (1.3 m) tall and the tibia was 58
inches (155 cm) long. A number of
prominent scientists have stated that
this member of the South American
titanosaur family was the largest
dinosaur that ever lived.