Fossil Birds (IMAGE) University of the Witwatersrand Caption This is an image of fossil birds from the time of dinosaurs (left image: Eoenatiornis, right image: Hongshanornis) showing they had diverse types of legs. Credit Roger Close 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.