280 million-year-old fossil reveals origins of chimaeroid fishes

280 million-year-old fossil reveals origins of chimaeroid fishes 01/10/2017 02:50 PM EST High-definition CT scans of the fossilized skull of a 280 million-year-old fish reveal the origin of chimaeras, a group of cartilaginous fish related to sharks. Analysis of the brain case of Dwykaselachus oosthuizeni, a shark-like fossil from South Africa, shows telltale structures of the brain, major cranial nerves, nostrils and inner ear belonging to modern-day chimaeras. Full story at https://sciencelife.uchospitals.edu/2017/01/04/280-million-year-old-fossil-reveals-origins-of-chimaeroid-fishes/ Source University of Chicago Medical Center This is an NSF News From the Field item.   Follow NSF:  This email was sent using GovDelivery, on behalf of: National Science Foundation Update · 4201 Wilson Boulevard · Arlington, VA 22230 · 703-292-5111