Category:Chattian first appearances
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First appearances of biota during the Chattian Age, the geologic time between 28.1 and 23 million million years ago, during the Oligocene Epoch of the Paleogene Period in the Cenozoic Era.
Subcategories
This category has the following 3 subcategories, out of 3 total.
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Pages in category "Chattian first appearances"
The following 24 pages are in this category, out of 24 total.
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