Experts have uncovered the remains of a gigantic dinosaur in Argentina and believe it could be one of the largest creatures to have ever walked the Earth.Paleontologists discovered the fossilized remains of a 98 million-year-old titanosaur in Neuquén Province in Argentina’s northwest Patagonia, in thick, sedimentary deposits known as the Candeleros Formation.The 24 vertebrae of the tail and elements of the pelvic and pectoral girdle