Fossil Leaves Record Information about Plant Ecological Strategies (image) PLOS Share Print E-Mail Caption Seen here is a Late Cretaceous specimen from the Hell Creek Formation, morphotype HC62, taxon ''Rhamnus'' cleburni. Specimens are housed at the Denver Museum of Nature and Science in Denver, Colorado. Credit Image credit: Benjamin Blonder. Usage Restrictions Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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.