- Jul 8, 2003
Superpredator Spinosaurus revealed as first known swimming dinosaur
A new Spinosaurus fossil has revealed that this gigantic predatory dinosaur was a proficient swimmer. The first fossil of the creature’s tail has been discovered, revealing large spines that indicate a paddle shape like a crocodile’s tail – the first dinosaur to show any kind of aquatic adaptation.
Spinosaurus was one of the largest carnivores to ever stalk the Earth. It’s believed to have been up to 18 m (59 ft) long and weigh more than 20 tons, making it bigger even than the Tyrannosaurus Rex. Its most iconic feature, of course, is the big sail on its back.