How much did the biggest dinosaur weigh?

Answer 1

http://www.enchantedlearning.com/subjects/dinosaurs/questions/faq/Biggest.shtml
According to Zoom dinosaurs website-The sauropods were the biggest. And this species weighted the most.
Argentinosaurus huinculensis - 115-130 feet long (35-40? m); 80-100 metric tons, although they also list some others that may have weighed about 80 tons as well: Seismosaurus, Brachiosaurus, Ultrasauros.