Presence of Carbon in Forminiferal Test (IMAGE) University of Texas at Arlington Caption The spectrum indicates the presence of both C and Si in the foraminiferal test. Credit Merlynd Nestell/UT Arlington 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.