This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Radiolaria Challenger Plate . follows Plate Liosphrida et Astrosphrida Diam Fig Coscinomma amphisiphon sp Fig piece of the latticeshell Fig Vertical section through the shellwall Fig Heliosphra hexagonaria sp Fig Acanthosphra castanea sp Fig Acanthosphra angulata sp Fig Acanthosphra reticulata sp Fig Heliosphra