Diatom from the Indian Southern Ocean (image) Max Planck Institute for Chemistry Share Print E-Mail Caption Microscopic picture of a Holocene centric diatom from the Indian Southern Ocean. The diatom has a diameter of about 70 micrometers. Credit Anja Studer; Max Planck Institute for Chemistry Usage Restrictions CC-BY 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.