Scientists have unearthed the skeleton of one of the most massive land animals of all time.
The specimen Dreadnoughtus schrani is exceptionally complete. "It´s a really important discovery. The glimpses we have of those giant, giant dinosaurs are pretty fleeting. … (Dreadnoughtus) will serve as a key to understanding all those other, more fragmentary specimens," says paleontologist Michael D´Emic of Stony Brook University.
Researchers excavated the fossil in Argentina in 2005. It weighs 65 tons and is, therefore, heavier than many models of the Boeing 737. It is believed that the Dreadnoughtus lived about 80 million years ago.