70-mn-year-old dinosaur species with 'battle axe' tail discovered in Chile

Chilean researchers have announced the discovery of a unique new species of ankylosaur (dinosaur family) named Stegouros elengassen, which has a tail resembling a battle axe. As per a scientist, the animal's tail had seven pairs of "blades" laid out sideways like a slicing weapon used by ancient Aztec warriors. The fossil is from about 72-75 million years ago.