Fossil Map (image) University of Texas at Austin Share Print E-Mail Caption A map of the 534 fossil sites used in the study. Circles represent new locations, and asterisks are previously sampled locations. Green = Cretaceous samples, Orange = Paleocene samples, and Red = Eocene samples. Credit Foster et al. Usage Restrictions Include credit 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.