Scientists in Spain have found the fossilized(化石化した)remains of one of the largest animals ever to walk the Earth, a gargantuan(巨大な)plant-eating(草食の)dinosaur up to 125 feet long and weighing as much as seven elephants. Turiasaurus riodevensis is the largest dinosaur ever found in Europe. It lived about 145 million years ago and was a sauropod(竜脚類). Other well-known sauropods include Apatosaurus, Brachiosaurus, and Diplodocus.