An article published in the journal “Proceedings of the Royal Society B” describes the study of the most massive titanosaurus discovered so far. Called Patagotitan mayorum, it was about 37 meters long (122 feet), about 6 meters (20 feet) tall and its weight was estimated at 69 tons, which make it the largest animal that ever lived on the mainland. It lived in the late Cretaceous, between 95 and 100 million years ago, in today’s Patagonia, Argentina.