Category:Oligocene first appearances
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Biological taxa that first appeared during the Oligocene epoch, between 33.9 and 23 million years ago during the Early/Lower Paleogene period.
Subcategories
This category has the following 4 subcategories, out of 4 total.
C
- Chattian first appearances (3 C, 24 P)
E
- Extant Oligocene first appearances (2 C, 59 P)
O
- Oligocene genus first appearances (2 C, 19 P)
R
- Rupelian first appearances (2 C, 12 P)
Pages in category "Oligocene first appearances"
The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes.