Xenophyophore An 8 cm large xenophyophore specimen from Ogasawara Trench showing clear growth rings. Photo courtesy of Beatrice Lecroq Date: 12 April 2013 Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0). Download full-resolution image Share on: