Paleontologists in Argentina have discovered the remains of a ginormous long-necked dinosaur that measured about 100 feet (30 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.

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“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.”

Read more: Live Science