Extant biological taxa that first appeared during the Oligocene epoch, of the Early/Lower Paleogene period. Plants and animals first appearing between 33.9 and 23 million years ago in the Oligocene, that have not yet gone extinct.
This category has the following 3 subcategories, out of 3 total.
The following 63 pages are in this category, out of 63 total. This list may not reflect recent changes.
Extant biological taxa that first appeared during the Oligocene epoch, of the Early/Lower Paleogene period. Plants and animals first appearing between 33.9 and 23 million years ago in the Oligocene, that have not yet gone extinct.
This category has the following 3 subcategories, out of 3 total.
The following 63 pages are in this category, out of 63 total. This list may not reflect recent changes.