CT Scan (IMAGE) West Virginia University Caption Through computed tomography (CT) imaging, WVU geologist James Lamsdell led a team that found evidence of air breathing in a 340 million-year-old sea scorpion, or eurypterid. This is one of the scans of the specimen. Credit James Lamsdell Usage Restrictions None 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.