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F. robusta/F. fohsi CRSZ
1587
Type
Subzone
Age range
13.13–11.79
Ma
International Timescale
Miocene
Serravallian
Planktic Foraminiferal Secondary Biozones
G. praesiphonifera PRZ
F. robusta/F. fohsi CRSZ
F. fohsi LOSZ
13.1
13.0
12.9
12.8
12.7
12.6
12.5
12.4
12.3
12.2
12.1
12.0
11.9
11.8
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