Paleontologists digging in Argentina believe they have unearthed the bones of the largest dinosaur to have ever lived.

According to BBC News, the paleontologists estimated it stood 65 feet tall and was 130 feet long, weighing 77 tons. The team has not named it yet, but it is believed to be a gigantic herbivore that lived in the Late Cretaceous period and a relative of the titanosaur.

"It will be named describing its magnificence and in honor to both the region and the farm owners who alerted us about the discovery," the researchers told BBC News.

Led by Dr. Jose Luis Carballido and Dr. Diego Pol, a team of palaeontologists from the Museum of Palaeontology Egidio Feruglio dug up the bones after a local farm worker noticed something strange in the ground. The team dug about 150 bones, some individual ones larger than the men, and all were in great condition.

"Given the size of these bones, which surpass any of the previously known giant animals, the new dinosaur is the largest animal known that walked on Earth," the researchers said. "Its length, from its head to the tip of its tail, was 40m.

"Standing with its neck up, it was about 20m high - equal to a seven-story building."

They believe it will dethrone the unofficial "largest dinosaur ever," the Argentinosaurus that weighed 70 tons. That dinosaur had significantly less bones for scientists to estimate its size from.

"Without knowing more about this current find it's difficult to be sure," Dr. Paul Barrett, a dinosaur expert from London's Natural History Museum, told BBC News. "One problem with assessing the weight of both Argentinosaurus and this new discovery is that they're both based on very fragmentary specimens - no complete skeleton is known, which means the animal's proportions and overall shape are conjectural."

For this reason, any dinosaur named to be "the largest ever" will have to carry the title unofficially.

"Moreover, several different methods exist for calculating dinosaur weight (some based on overall volume, some on various limb bone measurements) and these don't always agree with each other, with large measures of uncertainty," Barrett said. "So it's interesting to hear another really huge sauropod has been discovered, but ideally we'd need much more material of these supersized animals to determine just how big they really got."