ABC closed with the hydrosaur, a 65m-year-old duck-billed plant eater whose fossil has been found in North Dakota. Unlike most dinosaurs it was "remarkably preserved," Ned Potter told us "with fossilized skin, ligaments and tendons. You can see the scales on its side." Potter explained the significance: just as one cannot tell an elephant has a trunk from its skeleton, so most bone-based dinosaur fossils "do not tell very much about what an animal really looked like." Potter's piece was a promo for Sunday's TV documentary Dino Autopsy on the National Geographic Channel. Hydrosaur's "surprisingly large hind quarters" mean it could probably go fast enough "to outrun Tyrannosaurus Rex."
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