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The recently found species called “Chucarosaurus diripienda” lived in the Argentine Patagonia region about 90 million years ago, during the late Cretaceous period.

Argentine paleontologists in the province of Rio Negro, in the Patagonian region, discovered the remains New types of dinosaurs Long-necked herbivore of the genus “Chucarosaurus”, which lived during the late Cretaceous period, about 90 million years ago, mentioned National Council for Scientific and Technical Research (CONICET).

As reported by researchers in an investigation published In the journal Cretaceous Research, the remains of the new species, called Chucarosaurus diripienda, were discovered in the south of the Villa el Chocón community at the end of 2019.

During the excavations, the authors detailed, they found various party elements From two samples with a large amount of plant residue. The rocks in which they were found bore signs of wear indicating the presence of great rivers, an ecosystem very different from today, characterized by arid plateaus.

Cretaceous giant

As explained by Matthias Mota, a co-author of the paper, “Chucarosaurus” is a titanosaur that belongs to the group of colossaurus sauropods. [‘Colossosauria’]He added: “Based on the size of the femur, about two meters long, we estimate that it must be a weight between 40 and 50 tonsand I have some 30 metres long”.

According to the expert, its length is comparable to that of the other Cretaceous giants that inhabited what is now South America, such as “Argentinosaurus”, “Patagotitan” or “Notocolossus”, which are among the Larger From the world.

For his part, Federico Anolin, one of the other authors, notes that “the known bones of ‘Chucarosaurus’ are noticeably more slender, indicating that it must have been much more slender” than other large dinosaurs.

For Bernardo Gonzalez, co-author of the research, the discovery represents an opportunity to expand “anatomical knowledge of the appendicular bones of titanosaurs, such as the humerus, femur, ischium, and tibia,” which will allow for a better understanding of the different adaptations to the riverine environments in which they inhabited.