Type
Zone
Age range
17.92–17.03 Ma

International Timescale

Miocene
Burdigalian

Low Latitude Radiolarian Zonation

Calocycletta costata
Stichocorys wolffi
Stichocorys delmontensis
17.917.917.917.817.817.717.617.617.617.517.417.417.417.317.317.217.117.117.117.0

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