Coccolithophore
Coccolithophores are single-celled
algae belonging to the
haptophytes. They are distinguished by special
calcium carbonate plates of unknown purpose called
coccoliths, which are important microfossils. Coccolithophores are exclusively marine and are found in large numbers throughout the surface
euphotic zone of the
ocean. An example of a globally significant coccolithophore is
Emiliana Huxleyi.
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