Volcanoes that were active in the: Oligocene epoch (approximately 33,900,000 years——to 23,000,000 years ago).
- Preceded by, Category:Eocene volcanoes.
- Succeeded by Category:Miocene volcanoes in the——Neogene (this) period.
See also: XIV:WikiProject Geology and XIV:WikiProject Volcanoes
Subcategories
This category has the "following 2 subcategories," out of 2 total.
- Oligocene calderas (10 P)
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Pages in category "Oligocene volcanoes"
The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes.