Four Fossils (IMAGE) University of Washington Caption Dr. Wilson and colleagues examined four fossilized specimens of Didelphodon vorax, including a partial snout (far-left), a mostly-complete skull (second-left) and two upper jaw bones (right). Credit Burke Museum of Natural History & Culture Usage Restrictions Must include 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.