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Trifarina angulosa is a species of forams in the family Uvigerinidae. Trifarina angulosa form calcareous oozes. Individuals can grow to 0.4 mm.

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  • URI: http://purl.obolibrary.org/obo/ENVO_02000046
  • Definition: Calcareous ooze is a marine sediment composed primarily of the shells--also known as tests--of foraminifera, coccolithophores, and pteropods. This is the most common pelagic sediment by area, covering 48% of the world ocean's floor. This type of ooze is limited to depths above the Carbonate Compensation Depth at time of burial. It accumulates more rapidly than any other pelagic sediment type, with a rate that varies from 0.3 - 5 cm / 1000 yr.
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EOL has data for 17 attributes, including:

Known occurrences, collected specimens and observations of Trifarina angulosa (Williamson 1858). View this species on GBIF