Category:Oligocene first appearances

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 5 subcategories, out of 5 total.

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C

E

G

R

S

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Pages in category "Oligocene first appearances"

The following 12 pages are in this category, out of 12 total.

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A

B

D

E

K

O

P

S

T

W

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This category content has been reduced to only pages contained in the ZIM file.

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