Researchers led by Dr Jose Carballido, from the Museo Paleontologico Egidio Feruglio in Argentina, wrote in the journal Proceedings of the Royal Society B: 'Here we describe a new giant titanosaur, which not only represents the largest sauropod described so far but also one of the most complete titanosaur taxa recovered to date.
Patagotitan mayorum has been named, rather appropriately after both the place where it was discovered and then the Greek word for titan. The second name honours a ranch family that hosted the researchers.
"There was one small part of the family that went insane on size", said Diego Pol of the Egidio Feruglio paleontology museum in Argentina, a co-author of a study which analyzed six fossils of the species, as quoted by AP.
A cast of the dinosaur's skeleton is on display at the American Museum of National History in NY. It's so big that when the American Museum of Natural History, New York got a cast of the bones to display, they had to install it with the head sticking out into a hallway from the main room. You could stack 12 African elephants on top of the other and mayorum would still likely outweigh them.
Legendary T. rex and other meat-eaters "look like dwarfs when you put them against one of these giant titanosaurs", Pol said.
"Scientists have known various titanosaurs, but this is a new species and a new genus, which is a larger group", Pol said.
It was more than 15% heavier than Dreadnoughtus, the largest titanosaur from which a femur (thigh bone) and humerus (forearm bone) have been preserved.
Fossilised bones from six dinosaurs may have belonged to the biggest animal ever to have walked the Earth.
"It's hard to argue this is not a big deal when it comes to (possibly) the largest land animal ever discovered", says University of Maryland paleontologist, Thomas Holtz, who is not part of the study, via email. Researchers are still studying it, but said it probably has to do with an explosion of flowering plants at the time.