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Theocotyle cryptocephala
1656
Type
Zone
Age range
49–48.5
Ma
International Timescale
Eocene
Ypresian
Low Latitude Radiolarian Zonation
Dictyoprora mongolfieri
Theocotyle cryptocephala
Phormocyrtis striata striata
49.02
49.00
48.98
48.96
48.94
48.92
48.90
48.88
48.86
48.84
48.82
48.80
48.78
48.76
48.74
48.72
48.70
48.68
48.66
48.64
48.62
48.60
48.58
48.56
48.54
48.52
48.50
48.48
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