Three-Dimensional Reconstruction (IMAGE) Frontiers Caption This is a three-dimensional reconstruction made by synchrotron-based X-ray tomography (srxtm) of a fossilized fungal mycelia and prokaryotic cell-like structures in between the hyphae forming a 'cob-web'. Part of the mycelium has chemically bored into a calcite crystal (seen in the lower part). Credit Dr. Magnus Ivarsson 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.