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2013 Moorea Biocode   cc-by-nc-sa-3.0

Radiolaria (Radiolarians) is a group of rhizarians. There are 2838 species of radiolarians, in 862 genera and 161 families. This group has been around since the Cambrian Stage 4 Age. Radiolarians includes groups like Cadiidae. Radiolarians form siliceous oozes. They are passively mobile organisms.

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  • URI: http://purl.obolibrary.org/obo/ENVO_02000044
  • Definition: Siliceous ooze is a marine sediment composed of the debris of plankton with silica shells, such as diatoms and radiolaria. This ooze is limited to areas with high biological productivity, such as the polar oceans, and upwelling zones near the equator. The least common type of sediment, it covers only 15% of the ocean floor. It accumulates at a slower rate than calcareous ooze: 0.2-1 cm / 1000 yr.
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EOL has data for 30 attributes, including:

radiolarians Habitats

The environments in which many radiolarians species are known to live. Select an environment to see its radiolarians species checklist.

2013 Moorea Biocode   cc-by-nc-sa-3.0

Radiolarian Habitats

The environments in which many radiolarians species are known to live. Select an environment to see its radiolarians species checklist.