Disambiguation evidence for Oligocene Epoch via surface form

"Oligocene Series"

Triples (2)

Triples where some other subject referred to this entity as "Oligocene Series".

Oligocene Epoch → geochronologicEquivalent →
"Oligocene Series"
↳ resolves to Oligocene Epoch
ⓘ
Tertiary System → historicallyIncluded →
"Oligocene Series"
↳ resolves to Oligocene Epoch
ⓘ