New species of armless dinosaur roaming the Americas

Researchers have discovered a partially complete skull of a new dinosaur species in Argentina that they say may be a close relative of a weapon group of dinosaurs roaming the Southern Hemisphere. They say the new species, called Gumesia ochoi, offers new evidence of a unique ecosystem during the Late Cretaceous, more than 70 million years ago. Gumesia ochoi was a member of the Abelisauridae, a group of carnivores that roamed what is now Africa, South America, and India. Researchers have said that the newly discovered species CThe ancestor of abelisaurids may have been a close relative.

However, Gumesia ochoi differs from its abelisaurid relatives in two ways. One, this dinosaur species lacks horns; And two, it probably lived in what is now northern Argentina where its skull was found, rather than in the southern part of the country where most abelisaurid remains have been found. The second point suggests that G. ochoi can live in a variety of ecosystems.

It can be confusing to see it from today’s perspective as to how these animals roamed the Americas, Africa and India as these are different landmass. But millions of years ago, all these continents merged into one supercontinent called Pangea. Over time, as tectonic plates moved, these landmasses began to break up into Gondwana and Laurasia. About 180 million years ago, Gondwana and Laurasia itself began to split, as did India.

However, the process was slow. And so the species would still have been able to move between them. Some scientists say that the fauna of each landmass must have been largely the same.

Professor Anjali Goswami, co-author of the study and research leader at the Natural History Museum in London, said in a statement.

The researchers published their findings Journal of Vertebrate Paleontology

After analyzing the skull, the researchers found that Ji Ochoi had a smaller brain, indicating that he had a smaller brain. Researchers hope to understand more about life in ancient Argentina by G. More samples of Ochoi and his relatives will be discovered.


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