Pigment Cells (IMAGE) Lund University Caption These are nne hundred and eighty-million-year-old pigment cells (melanophores). To the left, light micrograph of the branched melanophores. In the centre, synchrotron-radiation X-ray tomographic microscopy (SRXTM) rendering of a melanophore with long dendritic processes. To the right, transmission electron microscopy (TEM) image of a melanophore that contains melanosome organelles. Credit Johan Lindgren (left image), Mats E. Eriksson and Federica Marone (centre images), and Ola Gustafsson (right image). 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.