Ankylosaurus was one of the largest ankylosaurs, with a total length of up to 10 metres (33 feet) and a probable weight of about four tons. Its head was square and flat and was broader than it was long. Its teeth, like those of the related stegosaurs, consisted of a simple curved row of irregularly edged (crenulated) leaf-shaped teeth.The body was short and squat, with massive legs to support That isn't much different from their modern counterparts. Modern elephants weigh 3 to 7 tons (2,722 to 6,350 kg) and range from 5 to 14 feet (1.5 to 4.3 m) tall, according to The Defenders of Ceratosaurus / ˌ s ɛr ə t oʊ ˈ s ɔːr ə s / (from Greek κέρας/κέρατος, keras/keratos meaning "horn" and σαῦρος sauros meaning "lizard") was a carnivorous theropod dinosaur that lived in the Late Jurassic period (Kimmeridgian to Tithonian ages).The genus was first described in 1884 by American paleontologist Othniel Charles Marsh based on a nearly complete skeleton 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. Diplodocus Was the Longest Dinosaur That Ever Lived. From the end of its snout to the tip of its tail, an adult Diplodocus could attain a length of over 175 feet. To put this number into perspective, a full-length school bus measures about 40 feet from bumper to bumper, and a regulation football field is 300 feet long. While it is true that the weight of Giraffatitan and Brachiosaurus have varied wildly over the years, the most recent estimates have been nowhere near the cherry-picked 80-tonne figure. Indeed, in .

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