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N. acostaensis LOSZ
1585
Type
Subzone
Age range
9.83–8.58
Ma
International Timescale
Miocene
Tortonian
Planktic Foraminiferal Secondary Biozones
G. plesiotumida/G. lenguaensis CRSZ
N. acostaensis LOSZ
G. trilobus PRZ
9.8
9.7
9.6
9.5
9.4
9.3
9.2
9.1
9.0
8.9
8.8
8.7
8.6
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