Surface Scanned Image (IMAGE) Society of Vertebrate Paleontology Caption Surface scanned image of the unassuming 'pebble' recently revealed to be a roughly 133 million-year-old fossil dinosaur brain, discovered in Sussex, England. Credit Society of Vertebrate Paleontology Usage Restrictions Please gain permission from SVP Media Contact License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.