The origin of pterosaurs has long been a mystery but recent discoveries show clear connections with a long-extinct group of reptiles
Source:
https://www.newscientist.com/article/2262116-ancestor-of-pterosaurs-might-have-been-a-tree-climbing-reptile/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home