Calcareous phytoplankton, SEM

Calcareous phytoplankton, SEM

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Credit: STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Caption: Calcareous phytoplankton. Coloured scanning electron micrograph (SEM) of Rhabdosphaera claviger. This small algal organism (coccolithophore) is surrounded by a skeleton (coccosphere) of calcium carbonate plates (coccoliths). When the organism dies, the plates separate and sink to the ocean floor. Individual plates have been found in vast numbers and can make up the major component of a particular rock, such as the chalk of England. R. claviger is found in marine environments world wide.

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Keywords: ball, calcareous phytoplankton, calcium carbonate, coccolith, coccolithophore, coccolithophorid, coccoliths, coccosphere, coloured, false-colour, false-coloured, flagellate, globe, invertebrate, invertebrates, marine, microbiological, microbiology, micropalaeontology, nature, one, rhabdosphaera claviger, round, scanning electron micrograph, scanning electron microscope, sem, single, skeleton, sphere, spherical, zoological, zoology

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