Cell Division Interrupted 551 Million Years Ago? (image) Virginia Tech Share Print E-Mail Caption Cells with what the scientists believe are two organelles, perhaps reflecting paired nuclei or spindle bundles caught in the act of separating, just as cell division was underway. Credit Provided by James Hagadorn Usage Restrictions To accompany coverage of the research reported in Science 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.