Darryl Granger and Marc Caffee, Purdue University (image) Purdue University Share Print E-Mail Caption Purdue University professors Darryl Granger (left) and Marc Caffee stand in front of the gas-filled magnet detector in the Purdue Rare Isotope Measurement Laboratory. The detector was used to date the Little Foot skeleton. Credit (Purdue University photo/John Underwood) Usage Restrictions For non-commercial use only Share Print E-Mail 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.