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T. ampliapertura HOZ
1541
Type
Zone
Age range
32–30.3
Ma
International Timescale
Oligocene
Rupelian
Planktic Foraminiferal Primary Biozones
D. sellii PRZ
T. ampliapertura HOZ
P. naguewichiensis HOZ
Planktic Foraminiferal Secondary Biozones
D. sellii PRZ
T. ampliapertura HOZ
P. naguewichiensis HOZ
32.0
31.9
31.8
31.7
31.6
31.5
31.4
31.3
31.2
31.1
31.0
30.9
30.8
30.7
30.6
30.5
30.4
30.3
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