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Foraminifera - Orbulina universa 5-14-16-9821.jpg |
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Only the spherical shell of Orbulina universa usually remains in sediments. In the living specimen shown, the sand-sized central sphere is surrounded by an abundance of delicate spines. Like most foraminifera, the shells and spines of this specimen are made up of calcium carbonate.
The numerous bright spots along the spines are smaller symbiotic organisms called dinoflagellates. These symbionts can number in the thousands per individual foraminifer. Even though foraminifers are single-celled heterotrophs, this particular species Orbulina universa is bound to live within the shallow photic zone because of its photosynthetic symbionts., Although as yet unsupported by morphological correlates, molecular data strongly suggest the Foraminifera are closely related to the Cercozoa and Radiolaria, both of which also include amoeboids with complex shells; these three groups make up the Rhizaria,Black Water diving, Pelagic marine life; planktonic creature; Off Riviera Beach, Fl, Gulfstream Current, South Atlantic Ocean.
© Suzan Meldonian 2016
Foraminifera, Orbulina universa.living specimen, single-celled heterotrophs, central sphere is with delicate spines are made up of calcium carbonate.e numerous bright spots along the spines are smaller symbiotic organisms called dinoflagellates. oraminifer. Even though foraminifers are single-celled heterotrophs, this particular species Orbulina universa is bound to live within the shallow photic zone because of its photosynthetic symbionts., related to the Cercozoa and Radiolaria, Pelagic marine life, plankton Gulfstream Current, South Atlantic Ocean.
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