The world's largest dinosaur, Dreadnoughtus, largest terrestrial animal ever discovered

Measurements of bones revealed that the animal was 65 tons, and still growing when it died in the Patagonian hills of Argentina about 77 million years ago.  To put the into perspective - the space shuttle weights - 82.5 tons.

“T. rex is eight tons, Diplodocus is 18 tons, and a Boeing 737 is around 50 tons,” said study author and paleontologist Kenneth Lacovara at Drexel University. “And then you have Dreadnoughtus at 65 tons.”
Dreadnoughtus, meaning “fears nothing,” is named after the impervious early 20th century battleships.

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