Scientists have identified dinosaur remains found a decade ago in northeastern Thailand as a new sauropod species, making it the largest dinosaur ever discovered in Southeast Asia. Named 'Nagatitan chaiyaphumensis,' the herbivorous dinosaur measured about 27 meters in length and weighed 27 tons, roughly the weight of 9 adult Asian elephants. It likely lived 100 to 120 million years ago and represents one of the last giant sauropods in the region.