A 319 million year old brain has been discovered. It could be the oldest of its kind | CNN
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advances and more. CNN — An analysis of the skull of a 319-million-year-old fossilized fish has led to the discovery of the oldest well-preserved example of a vertebrate brain, shedding new light on the early evolution of bony …