Skeleton of the Cretaceous Mammal Spinolestes with Preserved Fur Shadows (image) University of Chicago Medical Center Share Print E-Mail Caption Skeleton of the Cretaceous mammal Spinolestes with preserved fur shadows. The outer ear can be seen at the upper edge of the photo (arrow). Credit Georg Oleschinski Usage Restrictions None 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.