National Jul 7, 2014

Dinosaur tooth fragments 81 million years old found in Nagasaki

Three fossilized dinosaur tooth fragments have been discovered in a layer of earth 81 million years old in Nagasaki Prefecture, researchers said Monday. One of the three is from an ankylosaur, a bony-plated herbivore from the Upper Cretaceous period, estimated to be 5 to 8 ...