Fossil Remains (IMAGE) Universität Bayreuth Caption The fossil remains of extinct creatures (here: bryozoans and fragments of crinoids) were the basis for studies on the interaction of long- and short-term temperature changes in the course of Earth's history. Credit Photo: Axel Munnecke. Usage Restrictions None License Licensed content 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.