Scientists discover at the European Synchrotron the first fossil brain

		IMAGE: The structure of the skull (foreground) of a 300-million-year-old iniopterygian fish from Kansas remotely related to living ratfish is elucidated thanks to holotomography, a technique based on synchrotron X-ray phase... Click here for more information.

A 300-million-year-old brain of a relative of sharks and ratfish has been revealed by French and American scientists using synchrotron holotomography at the European Synchrotron Radiation Facility (ESRF). It is the first time that the soft tissue of such an old fossil brain has ever been found. The results are published in PNAS this week.