Fossils of two pterosaurs Thanatosdrakon amaru have been found in Argentina.

They died simultaneously 86-87 million years ago. The wingspan of one of them is seven meters, the second - nine. This makes it the largest flying pangolin ever discovered in South America. The discovered pterosaurs could be a parent and a calf - at the time of death they were nearby, while one of them was not yet an adult. But paleontologists have no proof of the degree of relationship.