Saurornitholestes langstoni (IMAGE) University of Alberta Caption A small, feathered theropod dinosaur, Saurornitholestes langstoni was long thought to be so closely related to Velociraptor mongoliensis that some researchers called it Velociraptor langstoni -- until now. Illustration by Jan Sovak. Credit Jan Sovak Usage Restrictions with credit to Jan Sovak 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.