<I>Smok wawelski</I>s and Dicynodont (IMAGE) Uppsala University Caption Coprolites, or fossil droppings, of the dinosaur-like archosaur Smok wawelski contain lots of chewed-up bone fragments. This led researchers at Uppsala University to conclude that this top predator was exploiting bones for salt and marrow, a behavior often linked to mammals but seldom to archosaurs. Credit Jakub Kowalski Usage Restrictions May be published in connection to reports about the research by Martin Qvarnström, Per E. Ahlberg, Grzegorz Nied?wiedzki - OR by permission by artist. 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.