Type
Zone
Age range
48.5–47.5 Ma

International Timescale

Eocene
Lutetian
Ypresian

Low Latitude Radiolarian Zonation

Thyrsocyrtis triacantha
Dictyoprora mongolfieri
Theocotyle cryptocephala
48.548.548.448.448.348.348.248.148.148.048.048.047.947.947.847.847.747.647.647.547.5

Macrostrat

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