👉 Pterosaurs were a group of sauropods that lived during the Late Cretaceous period, around 69.5 million to 64.7 million years ago. They were characterized by large wings and feathers, which allowed them to glide through the air like birds but also provided them with flight abilities. Pterosaurs are known for their distinctive features such as long necks, powerful beak, and wings that could extend up to three feet in length.