Top 10 Dinosaurs That Aren’t What They Were

If you haven't studied dinosaurs since you were an elementary school student, you have some catching up to do! As paleontologists find more and different fossils, our body of knowledge about the prehistoric reptiles has changed. Take the Stegosaurus, for example. What we thought we knew just a few years ago is different from what we think we now know.
Fossil footprints and detailed studies of its anatomy have proven that Stegosaurus didn’t drag its tail on the mud, but actually walked erect, like an elephant, with its tail held horizontally, parallel to the ground. Its back wasn’t as arched as they had us believe, and the neck was not carried horizontally as usually depicted, but upright, like a bird’s.

Also, the tail spike cluster (known among paleontologists as the “thagomizer”) didn’t actually point upwards, but sideways. This made the tail a much deadlier and more efficient weapon; to stab an attacking predator, Stegosaurus only had to swing its tail horizontally; punctures matching the Stegosaurus’ tail spikes have been found in the bones of predatory dinosaurs from the same age and place, proving once and for all that Stegosaurus wasn’t any less dangerous than the ankylosaurs that would evolve later.

And that's just the first of ten dinosaurs we once thought we knew. Link -via the Presurfer

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