Height: 70 feet (21.4 meters) About the size of a six story building.
Length: 120 feet (36.6 meters) Three long school buses end to end.
Weight: 100 tons
Period: Late Cretaceous
Argentinosaurus, recently discovered in Argentina, will probably will
turn out to be the largest dinosaur yet discovered, larger than Ultrasauros
or Seismosaurus. although Seismosaurus will likely continue to hold the
record for total length due to its extremely long tail, characteristic
of Diplodocidae. The cross section of one vertebra found of Argentinosaurus
measures over five and one half feet in height. Evolutionary biologists
believe that dinosaurs were able to reach such colossal sizes due to a
colossal metabolism. At the height of its adolescence, Argentinosaurus
was probably able to gain about 100 pounds a day!
Dinosaur pictures by Joe Tucciarone, http://members.aol.com/Dinoplanet/dinosaur.html, used by permission.
How do we figure out how big Argentinosaurus was? Check out the size of these vertebrae, just a few pieces of bone from the backbone of this creature! Many of its vertebrae were five feet tall and five feet wide.