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Foraminifera (Forams) is a group of rhizarians. There are 32838 species of forams, in 3023 genera and 375 families. This group has been around since the Ediacaran Period. Forams form calcareous oozes. They are a sessile organism.

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  • URI: http://purl.obolibrary.org/obo/ENVO_02000046
  • Дефиниција: 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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