scientists on Argentina have found the ancient remains of a new kind of carnivorous dinosaur.
They say that the creature lived about 70 million years ago and had very small arms and a large head. The researchers they say that it may have used its head to strike and capture prey.
The carnivorous dinosaur was discovered in Argentina
NEW carnivorous dinosaur of the abelisaur group discovered in #jump. Its name Guemesia ochoai is a tribute to Martín Miguel de Güemes, the Argentine hero and the discoverer of the Javier Ochoa fossil. It was published in the Journal of Vertebrate Paleontology https://t.co/u6GPrjP8HS pic.twitter.com/C1mfsXfevr
– Azara Foundation (@FundacionAzara)
March 1, 2022
The skull of the dinosaur, named Guemesia ochoai, was discovered in the province of Salta, in northwestern Argentina.
The researchers said it probably belongs to a group of meat-eating or carnivorous dinosaurs called abelisaurs. These dinosaurs walked on two legs and had very short arms, even shorter than those of the North American Tyrannosaurus rex.
The short arms may have forced Guemesia to rely more on its powerful skull and jaws, the researchers said. Federico Agnolin is the lead author of a study on the dinosaur that was published in the Journal of Vertebrate Paleontology.
The animals existed for a few million years before an asteroid hit what is now Mexico’s Yucatan Peninsula. That event, some 66 million years ago, led to a series of disasters that wiped out all the dinosaurs and many other animals.
����| In the Los Blanquitos Formation, paleontologists unearthed a 70-million-year-old dinosaur skull.
The new species, called Guemesia ochoai, was an armless hunting dinosaur, which would provide new evidence of a unique ecosystem in the Late Cretaceous. pic.twitter.com/tuavyEzISb
– Pelontology (@Paleontology)
March 2, 2022
Scientists believe that abelisaurs lived in what is now Africa, South America, and India. Several abelisaurs have been unearthed in Argentina in the past, but almost all of them were in southern Patagonia, far from the site where Guemesia was found.
“We know that he had a very acute sense of smell and was nearsighted,” Agnolin said. He also noted that the animal would have walked upright on its large legs, with its heavy head on top. Guemesia takes its name from the Argentine independence hero Martín Miguel de Güemes and Javier Ochoa, a museum worker who made the discovery.
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