Move over, T. rex and Barosaurus. There is a new prehistoric giant in town, set to be unveiled this week at the American Museum of Natural History.

The creature, known as the Titanosaur, goes on public view Friday. The biggest dinosaur ever exhibited at the museum and among the largest ever discovered, it stretches 122 feet long and will rise nearly 20 feet to reach the ceiling. It is believed to have weighed, when walking the Earth roughly 100 million years ago, some 70 tons—as heavy as at least 10 African elephants.

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