Photos: One of the World's Biggest Dinosaurs Discovered

Giant Discovery

(Image credit: Museum of Paleontology Egidio Feruglio)

Huge beast

The newfound dinosaur would have towered over carnivores like beasts in the Tyrannotitan genus, as well as giraffes and humans, as this diagram shows.

Heavy Duty Job

Using jackhammers, shovels and even bulldozers, researchers from the Museum of Paleontology Egidio Feruglio in Argentina's Patagonia region removed the fossils from a site in the center of the Chubut province, about 160 (260 kilometers) from the city of Trelew.

Dinosaur Bone

The sauropod's femur next to researcher Pablo Puerta.

One of the Biggest

The excavators estimate that the four-legged creature would have stretched stretched 131 feet (40 meters) in length and weighed 80 tons (73 tonnes).

Discoverers

Researchers Pablo Puerta and José Luis Carballido with their discovery.

Megan has been writing for Live Science and Space.com since 2012. Her interests range from archaeology to space exploration, and she has a bachelor's degree in English and art history from New York University. Megan spent two years as a reporter on the national desk at NewsCore. She has watched dinosaur auctions, witnessed rocket launches, licked ancient pottery sherds in Cyprus and flown in zero gravity. Follow her on Twitter and Google+.