Author with K-Pg core (IMAGE) Geological Society of America Caption Lead author Francisco J. Rodríguez-Tovar in Bremen, Germany, working with the K-Pg core from IODP Expedition 364. Credit Geology and Francisco J. Rodríguez-Tovar Usage Restrictions Credit Geology and Francisco J. Rodríguez-Tovar 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.