Modern Cryptogamic Cover (IMAGE) University of Bristol Caption Early life on land resembled cryptogamic ground covers like this lava field in Iceland. Co-author Sylvia Pressel appears in the right of the picture. Credit Image courtesy of Paul Kenrick 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.