coccoliths

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coccoliths The microscopic calcareous plates or discs, often oval and commonly intricately patterned and ornamented, that occur as part of the protective covering of a group of the unicellular algae called coccolithophorids. Coccoliths are a major component of the modern deep-sea calcareous oozes, and were especially abundant in the Mesozoic, particularly the Cretaceous Period, in which they became a major component of the Chalk lithology.

coccoliths

views updated

coccoliths The microscopic calcareous plates or discs, often oval and commonly intricately patterned and ornamented, that occur as part of the protective covering of a group of the unicellular algae called coccolithophorids. Coccoliths are a major component of the modern deep-sea calcareous oozes, and were especially abundant in the Mesozoic, particularly the Cretaceous Period, in which they became a major component of the Chalk lithology.

coccoliths

views updated

coccoliths The microscopic calcareous plates or discs, often oval and commonly intricately patterned and ornamented, that occur as part of the protective covering of a group of the unicellular algae called coccolithophorids. Coccoliths are a major component of the modern deep-sea calcareous oozes, and were especially abundant in the Mesozoic, particularly the Cretaceous Period, in which they became a major component of the Chalk lithology.