Type
Zone
Age range
24.6–23.62 Ma

International Timescale

Oligocene
Chattian

Low Latitude Radiolarian Zonation

Cyrtocapsella tetrapera
Lychnocanoma elongata
Dorcadospyris ateuchus
24.624.624.524.424.424.424.324.324.224.124.124.124.023.923.923.923.823.823.723.623.6

Macrostrat

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