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Nassellaria is an order of radiolarians. There are 565 species of Nassellaria, in 164 genera and 16 families. It includes groups like Trissocyclidae, Theoperidae, and Pterocorythidae. Dead Nassellaria form siliceous oozes.

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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 7 attributes, including:

Known occurrences, collected specimens and observations of Nassellaria from the Global Biodiversity Information Facility   GBIF provides free and open access to biodiversity data. View this species on GBIF