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Globigerina bulloides

Detailed Description

Foraminifera are single celled protists that secrete calcium carbonate tests (shells). Different species are recognized by their appearance, and each has its own range of environmental tolerances (for example, temperature and salinity), making past environmental interpretations possible. This fossil specimens of Globigerina bulloides is ~250 microns (0.01 inches) wide, about the size of a grain of sand.


Public Domain.