image: Tetrapodophis amplectus skull. This material relates to a paper that appeared in the July 24, 2015, issue of Science, published by AAAS. The paper, by D.M. Martill at University of Portsmouth in Portsmouth, UK, and colleagues was titled, "A four-legged snake from the Early Cretaceous of Gondwana." view more
Credit: [Credit: Dave Martill, University of Portsmouth]