Conceptually similarOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177852Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177861Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177892Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177903Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Phacodiscus sp.), SEMSS177871Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177779Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Astrosestrum sp.), SEMSS177791Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian, SEMSS177883Rights ManagedOliver Meckes EYE OF SCIENCERadiolarian (Spongoxiphus prunococcus), SEMSS177907Rights ManagedView AllView more with similar tones Radiolarian (Astrosestrum sp.), SEMLicense type:Rights ManagedUnique identifier:SS177875Description:This radiolarian [Legion SPUMELLARIA, Order DISCOIDEA, Astrosestrum sp. (Haeckel)] is from Mount Diablo in California and dates to the Eocene (34-56 million years ago). The Radiolaria, also called Radiozoa, are protozoa that produce intricate mineral skeletons made of silica, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm. They are found as zooplankton throughout the ocean, and their skeletal remains, or tests, make up a large part of the cover of the ocean floor as siliceous ooze. Scanning electron microscope, magnification 500:1 (when 15cm wide).Credit:Eye Of Science / Science SourceSize:6400px × 5516px (~101 MB)Restrictions:No Sale through SubagentsGet PricingHow Will The Visual Be Used?ShareKeywords:Astrosestrum-barbados-discoidea-eocene-fossil-haeckel-index fossils-marine-marine life-micrograph-Mount Hillaby-protist-protozoa-radiolaria-rhizaria-scanning electron microscope-Science-sem-silica-spumellaria-test-zooplanktonFolder Legacy Identifier:SS2CT66568_20200909Model release:N/AParent folder:2020-09-09