Chilecebus Skull (image) American Museum of Natural History Caption Fossil Chilecebus from South America. Credit John Weinstein, The Field Museum Usage Restrictions Please credit the photographer. This image has appeared in print before. 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.