LSF Image of Yi qi Fossil (IMAGE) The University of Hong Kong Caption Figure 1. Laser-Stimulated Fluorescence (LSF) image of the fossil of Yi qi, a bat-winged dinosaur from the Late Jurassic of northern China. Credit Dececchi et al. 2020. 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.