Claw of Therizinosaur (IMAGE) University of Bristol Caption This is a fossil of the enlarged claws on the forelimbs of the therapod dinosaur, Therizinosaurus cheloniformes. A new study by Dr. Stephan Lautenschlager, University of Bristol, UK, reveals that during their transition from carnivores to herbivores, therapod dinosaurs developed a large variety of claw shapes adapted to specific functions such as digging, grasping or piercing. Credit Dr. Stephan Lautenschlager, University of Bristol, UK Usage Restrictions Image is for single use only to illustrate stories on Stephan Lautenschlager's <i>Proc. R. Soc. B</i> paper on therizinosaur claws (May 2014) and must not be archived. Please credit the copyright holder: Dr. Stephan Lautenschlager, University of Bristol 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.