What are Foraminifera
Foraminifera, in short forams, are single-celled organisms which live in the oceans. They consist of cytoplasma, which is stabilized and protected by an inner shell called test. Either they float in the water column (
planktonics) or live on the sea floor (
benthics). Of the approximately 6,000 species living today, only about 50 species are planktonic. It is estimated that there are about 42.000 species, which went extinct.