The largest Ankylosaurus specimen ever found was 20.5 feet (6.25 meters) long, 5.6 feet (1.7 m) Whatever the case, it seems the dinosaur did sometimes use its tail as a weapon. "In two fossil The scientific name of Sauropoda comes from the combination of the Greek words sauros, meaning lizard, and poda, meaning foot. The largest members of this group reached more than 85 feet from head to tail and weighed up to 65 tons. They easily dwarfed the elephant and reached nearly as large as blue whales. The Nation's T. rex was 38 feet (11.6 meters) long, and scientists estimate that it weighed 4-5 tons, which is about 8,800-11,000 pounds. How complete is the Nation's T. rex ? It is one of the most complete T. rex specimens ever found, with approximately 85 percent of the skeleton preserved. Period: Late Jurassic epoch. Size and Weight: Average 8.5 meters (28 ft) in length and weighs 2.3 metric tons (2.5 short tons) Diet: Carnivores (large herbivore dinosaurs, like Stegosaurs and Brachiosaurus) The first on our list of largest meat-eating dinosaurs is the Allosaurus. Allosaurus was a large, bipedal Theropod that existed during the It was far longer, almost twice as tall and more than three times heavier than Diplodocus. Patagotitan is a titanosaur, a type of sauropod. Not all titanosaurs were particularly large, but Patagotitan was. Its thigh bone (femur) alone was 2.38 metres long. Although Supersaurus is the longest dinosaur ever discovered, it is not the heaviest. That honor is likely to go to the superheavy titanosaur Argentinosaurus, which weighed up to 200,000 lbs and was nearly twice as big as the Supersaurus. Where did the Supersaurus live? The Supersaurus lived in North America during the Jurassic period. An early and not especially large sauropod, it lived 160 million years ago, laid eggs and possibly lived in a herd. It weighed 13 tons and ate 1,150 pounds of vegetation a day. The model focuses Many pterosaurs were small but the largest had wingspans which exceeded 9 m (30 ft). The largest of these are estimated to have weighed 250 kilograms (550 lb). For comparison, the wandering albatross has the largest wingspan of living birds at up to 3.5 m (11 ft) but usually weighs less than 12 kilograms (26 lb). yGCn.