Comparison (IMAGE) University of Washington Caption Dr. Christian Sidor, Burke Museum curator of vertebrate paleontology, and Brandon Peecook, University of Washington graduate student, show the size and placement of the fossil fragment compared to the cast of a Daspletosaurus femur. Credit Burke Museum Usage Restrictions With credit. 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.