Composite section of cretaceous nannofossils from profile Pré-Guittard, SE Fr...
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C=common (>1 specimen/field view); F=frequent (1 specimen/2-10 fields of view); R=rare (1 speciemen/>11 fields of view)

C=common (>1 specimen/field view); F=frequent (1 specimen/2-10 fields of view); R=rare (1 speciemen/>11 fields of view)