Two new species of dinosaurs have been discovered in America. Dinosaurs inhabited all continents. However, South America was most occupied by the giants. That is why most of the fossils discovered come from this area.
A new species of titanosaur has been found in the Atacama Desert in northern Chile. This specimen is one of the long-necked dinosaurs that were naturally herbivores. With a small head, elongated body, and strong limbs, they lived all over South America in the late Cretaceous period. The second species discovered was found in Patagonia, Argentina. It belongs to the same group of dinosaurs as the discovery of Chile
Chile was the place where one of the new species of dinosaur was found
This copy is the second in Chile. Information about the discovery was published in the journal Cretaceous Research. According to the participating team, there were several species of giant titanosaurs in the region.
González Riga is the scientist who led this team. He is an independent researcher at CONICET. He also works at the Interdisciplinary Institute for Basic Sciences. Finally, he also directs the dinosaur laboratory and museum at the National University of Cuyo in Argentina.
As the expert explained, some of the titanosaurs found were giants among giants. Most of the genera found weighed 60 tons and were more than thirty meters long. Some examples are the Noto Colossus, the Argentinosaurus, the Puertasaurus, and the Patagotitan.
South America was the most dinosaur-inhabited continent
During the Cretaceous Period, these types of dinosaurs inhabited all continents. However, South America was the busiest. This was due to the abundance of food and the favorable climate. Different types of different shapes and sizes evolved. 80 types of titanosaurs are known worldwide, 55 of which were found in South America.
In the 1990s they found the first fossils of the Arakar Licanantay species. Who found it was the geologist Carlos Arévalo from the National Service for Mining and Geology in Chile. It was a little over 20 feet tall and the remains are believed to have belonged to a young animal. According to the researchers, the adult specimens were 8 meters long.
This discovery made it possible to expand the study of these large sauropods. Species that finally became extinct 66 million years ago at the end of the Cretaceous Period. Most similar are the Rapetosaurus found in Madagascar and the Isisaurus native to India.
Variety of finds in Argentina
In early 2021, a team of researchers discovered the world’s oldest specimen in Patagonia, Argentina. The species called Ninja Titan Zapatai lived 140 million years ago and is identified in the long-necked titanosaurs.
It is a relative of the species found in Chile. The discovery took place in the southern Argentine province of Neuquén. It was 20 meters long, but still not the largest. Other specimens like Argentinosaurus reached 35 meters. They were bigger and heavier too.
They also discovered the Llukalkan Aliocranianus in Patagonia, Argentina. It was a titanosaur that lived 80 million years ago during the Cretaceous Period. This animal belongs to the genus of carnivorous dinosaurs. It was about five meters long, had a very strong jaw with sharp teeth, long hooves, and a strong sense of smell. Finally, through the found skull of this new species, they discover that it had protrusions on its head. It is estimated that they were used to kill his victims.
Scientists believe that many fossils have yet to be found, although discoveries are repeated on a regular basis. Therefore, every time they discover new species of dinosaurs, it is a festival for archaeologists and the scientific world.