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Pinnularia brauniana is a species of diatoms in the family Pinnulariaceae. They are native to Pará, Rio Grande Do Sul, Espirito Santo, Paraná, Distrito Federal, SãO Paulo, and GoiáS. Dead Pinnularia brauniana 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 11 attributes, including:

Known occurrences, collected specimens and observations of Pinnularia brauniana. View this species on GBIF