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Coccolith vs Discolith - What's the difference?

coccolith | discolith |

In biology terms the difference between coccolith and discolith

is that coccolith is a microscopic skeletal plate of calcite on the surface of certain marine phytoplankton; it forms chalk and limestone when fossilized while discolith is a kind of coccolith with an oval discoidal body, a thick strongly refracting rim and a thinner central portion.

coccolith

English

Noun

(wikipedia coccolith) (en noun)
  • (biology) A microscopic skeletal plate of calcite on the surface of certain marine phytoplankton; it forms chalk and limestone when fossilized

    • discolith

    English

    Noun

    (en noun)
  • (biology) A kind of coccolith with an oval discoidal body, a thick strongly refracting rim and a thinner central portion.
    • (Webster 1913)