Metaspriggina (image) University of Cambridge Caption Left: This is an illustration of Metaspriggina swimming. Drawing by: Marianne Collins. © Conway Morris and Caron. Right: This is a fossil of Metaspriggina from Marble Canyon -- head to the left with two eyes, and branchial arches at the top. Photo by: Jean-Bernard Caron © ROM. Credit Left: Drawing by: Marianne Collins. © Conway Morris and Caron. Right: Photo by: Jean-Bernard Caron © ROM. Usage Restrictions Please credit the image. 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.