Sterling Nesbitt, University of Texas at Austin (image) University of Texas at Austin Share Print E-Mail Caption Paleontologist Sterling Nesbitt at Hayden Quarry on Ghost Ranch in northern New Mexico. Nesbitt, a post doctoral researcher at the University of Texas at Austin, and his colleagues discovered Tawa hallae, a previously unknown theropod dinosaur. Credit Guillermo Rougier Usage Restrictions Proper credit must be given to the photographer Guillermo Rougier. Share Print E-Mail 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.