Karen L. Johnson   cc-by-nc-4.0

Hormosinana is a subcategory of foraminifers. There are 400 species of Hormosinana, in 40 genera and 11 families. It includes groups like Thomasinellidae, Cribratinidae, and Ammolagenidae. Dead Hormosinana form calcareous oozes.

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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 3 attributes, including: