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M. marginodentata PRZ
1526
Type
Zone
Age range
54.5–54
Ma
International Timescale
Eocene
Ypresian
Planktic Foraminiferal Primary Biozones
M. formosa LOZ
M. marginodentata PRZ
P. wilcoxensis/M. velascoensis CRZ
54.52
54.50
54.48
54.46
54.44
54.42
54.40
54.38
54.36
54.34
54.32
54.30
54.28
54.26
54.24
54.22
54.20
54.18
54.16
54.14
54.12
54.10
54.08
54.06
54.04
54.02
54.00
53.98
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