Type
Zone
Age range
20.53–17.92 Ma

International Timescale

Miocene
Burdigalian
Aquitanian

Low Latitude Radiolarian Zonation

Stichocorys wolffi
Stichocorys delmontensis
Cyrtocapsella tetrapera
20.620.420.220.019.819.619.419.219.018.818.618.418.218.0

Macrostrat

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