image: Paleontologists David Martill, Nizar Ibrahim, Paul Sereno and Cristiano Dal Sasso at the field site (from left to right). A partial spine of Spinosaurus can be seen in the foreground. This material relates to a paper that appeared in the Sept. 11 2014, issue of Science Express, published by AAAS. The paper, by N. Ibrahim at University of Chicago in Chicago, IL, and colleagues was titled, 'Semiaquatic adaptations in a giant predatory dinosaur.' view more
Credit: [Image copyright Cristiano Dal Sasso]