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Upper Aptian Pré-Guittard (Niveau Kilian) range chart in percentages of nanno...
Method see Geisen et al, 1999, Micropaleontology. Volume: 1000 ml, high: 5 cm, field of view: 0.000227 cm**2 -
Upper Aptian Niveau Kilian range chart of nannofossils in SE France
C=common (>1 specimen/field view); F=frequent (1 specimen/2-10 fields of view); R=rare (1 speciemen/>11 fields of view)