Sinopterus is a genus of tapejarid pterodactyloid pterosaur from the Aptian-age Lower Cretaceous Jiufotang Formation of Chaoyang, Liaoning, China. It was first described and named by Wang Xiaolin and Zhou Zhonghe. From Wikipedia
Detection of phytoliths alongside gastroliths in a Liaoning Sinopterus atavismus specimen challenges long-held views of carnivorous pterosaurs.
