: Paléoclimatologie: foraminiferal test

biological object > foraminiferal test

foraminiferal test

Foraminiferal tests are the tests (or shells) of Foraminifera. Foraminifera (forams for short) are single-celled predatory protists, mostly marine, and usually protected with shells. These shells may be single-chambered or have multiple interconnected chambers; the cellular machinery is contained within the shell. So important is the test to the biology of foraminifera that it provides the scientific name of the group—foraminifera, Latin for "hole bearers", refers to the pores connecting chambers of the shell in the multi-chambered species. Foraminiferal tests are usually made of calcite, a form of calcium carbonate (CaCO3), but are sometimes made of aragonite, agglutinated sediment particles, chitin, or (rarely) of silica. Other foraminifera lack tests altogether. (Adapted from: https://en.wikipedia.org/wiki/Foraminifera_test)

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