What did pterosaurs look like? (IMAGE) University of Portsmouth Caption What did pterosaurs look like? Some researchers think they had a relatively smooth skin without any covering, similar in appearance to the skin on the palms of your hands. Others have argued that they were covered with small feather-like structures and looked a little bit like four-legged birds. . Credit Megan Jacobs, University of Portsmouth. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.