Diplodocus was a Jurassic Sauropod Diplodocus walked the Earth about 150 million years ago in the late Jurassic Era. At the time of its discovery, Diplodocus was the longest dinosaur on record. It has since been out-measured by the likes of the Supersaurus or the rarely-mentioned Futalgnkosaurus, but Diplodocus played an important role in fueling the public’s imagination about … [Read more...]