Radiolarians

 These are marine protozoans with a silica shell. They range in size from 50-200um. Their skeletal morphology may have a hydrodynamic or feeding function. They are used exclusively in biostratigraphy and paleooceanography

  • Challengeranium diodon

  • Euphysetta elegans

  • Radiolarian- a few coccoliths (pink) visible on the surface

  • Radiolarian

  • Radiolarian- numerous coccoliths (purple) are seen on the surface

  • Radiolarian

  • Radiolarian

  • Radiolarian- internal shell structure evident

  • Radiolarian

  • Radiolarian

  • Radiolarian - coccoliths (in purple) hiding in some of the pores

  • Stylosphaera- radiolarian displaying inner shell structure

  • Visolena zansuebarica- Radiolarian