The Sauroposeidon was even larger than this Brontiosaurus!
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Courtesy of Nova Development

What Animal Once Shook the Earth?
News story originally written on November 8, 1999

The answer is.... the Sauroposeidon! This name is probably not familiar, but you surely know of Tyrannosaurus Rex, Bronchiosaurus or Stegasaurus. That's right, Sauroposeidon is the latest dinosaur discovered by scientists. They think the dinosaur stood 60 feet tall and weighed 60 tons! This is large enough to shake the ground. Hence, scientists named it Sauroposeidon, which means "earthquake god lizard".

Scientists say the giant lizard was similar to a giraffe, except it was 30 times bigger! It had a very long neck, with bones up to 4 feet in length. Because the bones were so long, they were filled with tiny air sacs to make the neck lighter. Otherwise, the animal wouldn't be able to lift its head to eat.

Scientists say the dinosaur probably ate leaves off of trees and lived in a wet area. It was one of the last dinosaurs to exist, and most likely did not have any predators because it was so huge.

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