We see an illustration of a long-necked titanosaur dinosaur standing in front of four trees. The image is gray and reddish.

The newly described mid-Cretaceous dinosaur Chucarosaurus diripienda was likely about 100 feet (30 meters) long. (Image credit: Sebastián Rozadilla)

Paleontologists in Argentina have discovered the remains of a ginormous long-necked dinosaur that measured about 100 feet (90 meters) long when it lived about 90 million years ago, a new study finds.

Examining this enormous dinosaur wasn’t always easy. The fossils of the titanosaur — the largest of the long-necked dinosaurs — were so heavy, they caused a traffic accident when the researchers were transporting the herbivore’s remains to Buenos Aires to be studied.

“The weight destabilized the vehicle and caused an accident,” study senior author Fernando Novas, a paleontologist at the Bernardino Rivadavia Natural Sciences Museum in Buenos Aires and a researcher with the Argentine National Research Council (CONICET), told Live Science in a translated email. “Luckily, no one was seriously injured and the bones of this dinosaur, which flew through the air, were so hard that they were not damaged. On the contrary, they broke the asphalt of the road.”

One of Chucarosaurus diripienda‘s femurs next to a shovel for size comparison. The femur spans 6.2 feet (1.9 meters) in length. (Image credit: Nicolas Chimento)

That accident helped inspire the dinosaur’s scientific name: Chucarosaurus diripienda. In the region’s indigenous language Quechua, “Chucaro” means “hard and indomitable animal,” while in Latin “diripienda” means “scrambled.”

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