image: terosaur lower jaw eroding on the surface. Note the large teeth, one of the characteristics of Hamipterus tianshanensis. This material relates to a paper that appeared in the Dec. 1, 2017, issue of Science, published by AAAS. The paper, by X. Wang at Chinese Academy of Sciences in Beijing, China, and colleagues was titled, "Egg accumulation with 3-D embryos provides insight into the life history of a pterosaur." view more
Credit: Alexander Kellner (Museu Nacional/UFRJ)