A massive dinosaur fossil discovered in Argentina’s Patagonia region caused a traffic accident during its transport. The fossilized remains of Chucarosaurus diripienda, a long-necked titanosaur that lived around 90 million years ago, were so heavy that they broke the road itself while being moved to a lab for study.
The discovery of Chucarosaurus diripienda is significant not only due to its massive size but also because of the challenges faced in handling such a heavy fossil. The fossilized remains, including key bones from the dinosaur’s limbs, were found in 2018 in the Río Negro province of Argentina. Paleontologists involved in the excavation and transport of the fossils never anticipated the dramatic results of moving these immense bones, highlighting the scale of the prehistoric creatures that once roamed Earth.
A Dinosaur That Was Almost Too Big to Move
The fossils of Chucarosaurus diripienda were uncovered scattered across the Patagonian hills, requiring careful extraction and transport. According to Fernando Novas, senior author of the study, the fossilized bones were so large that moving them required several people to work together to inch them along.
But the real challenge came when it was time to transport the bones to Buenos Aires. The vehicle carrying the fossils became unstable due to their immense weight, resulting in an accident. The fossils flew through the air, but miraculously, they remained undamaged.
“The weight destabilized the vehicle and caused an accident,” he said “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.”
This incident was so impactful that it influenced the dinosaur’s scientific name: Chucarosaurus diripienda. The name is derived from Quechua, meaning “hard and indomitable animal,” and Latin, referring to “scrambled,” reflecting both the weight of the fossils and the accident they caused.
A Colossal Dinosaur, but Not the Largest
While Chucarosaurus diripienda was certainly massive, it wasn’t the largest titanosaur to ever roam the Earth. There are other giants that surpassed it in size, as Novas explained:
“It is far from being one of the largest and most colossal dinosaurs, such as Patagotitan, Argentinosaurus, or Notocolossus, which would have weighed between 70 tons [63.5 metric tons].”
That said, Chucarosaurus was still a heavyweight, estimated to weigh between 30 and 40 tons and measuring about 100 feet long. It was one of the larger herbivores of its time, and its size would have made it an impressive presence in the Cretaceous period.
Its long neckallowed it to reach food that smaller plant-eaters couldn’t access, feeding on high-up leaves in the trees. Its tail, likely long and powerful, might have been used as a defense against carnivorous dinosaurs that would have seen it as prey. Even though it wasn’t the largest of its kind, Chucarosaurus was still a dominant figure in the mid-Cretaceous period.
Unusually Thin Limbs for a Dinosaur of Such Size
The research, published in the journal Cretaceous Research, highlights a particularly fascinating aspect of Chucarosaurus:: its limb anatomy. While titanosaurs are typically known for their large, thick limbs, Chucarosaurus had surprisingly slender bones for such a massive creature.
Novas pointed out that the femur of this dinosaur was about 1.9 meters (6.2 feet) long, yet its limb bones were thinner than expected for an animal of its size. This suggests that the dinosaur might have used a more efficient design compared to other titanosaurs.
The limb proportions of Chucarosaurus diripienda indicate that the movement of these massive creatures wasn’t uniform. Some may have been more agile than previously thought, using their specialized limbs to cover large distances effectively.
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