Paleontologists and researchers from Conicet presented the "Azhdarchidae", a species of flying reptile, found in Río Negro, which lived 100 million years ago and is the oldest in South America, it was officially reported. The fossil remains were found on the banks of the Ezequiel Ramos Mexia reservoir in Rio Negro. "It is the largest flying reptile that existed in the history of the Earth that dominated the skies during the era of the dinosaurs," they expressed from the provincial Culture and Heritage area. The discovery consists of a neck vertebra discovered in rocks of the Candeleros Formation, 90 to 100 million years old. Unlike these species, the new vertebra found represents an animal with a wingspan similar to that of a condor. On this occasion, members of the Laboratory of Comparative Anatomy and Evolution of Vertebrates (LACEV) announced the discovery of the oldest Azhdarchidae on the continent. "The investigation is possible thanks to the joint work with the Secretary of State for Culture of the province, the enforcement body in charge of providing permits so that these important findings can be carried out," the sources indicated. Other azhdarchids are known in Argentina, such as Aerotitan sudamericanus, also from Río Negro, but much more recent (70 million years old), and Thanatosdrakon amaru (85 million), from the province of Mendoza, which is one of the more complete azhdarchids and would have reached nearly 9 meters in wingspan.