Fossil Coccoliths in Limestone Examined by Electron Microscopy

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Science  15 May 1964:
Vol. 144, Issue 3620, pp. 837-839
DOI: 10.1126/science.144.3620.837


Examination of polished and etched limestone surfaces (Jurassic from the Alps, Paleocene from Spain) by electron microscopy reveals coccoliths, in varying stages of preservation, in numbers of 100,000 to 1,000,000 per culbic millimeter.