Category:Pennsylvanian first appearances
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Here is a list of articles in the category Pennsylvanian first appearances of the Biology portal. Biological taxa that first appeared during the Pennsylvanian epoch of geologic time, between 323.2 and 298.9 million years ago during the Carboniferous Period.
Pages in category "Pennsylvanian first appearances"
The following 54 pages are in this category, out of 54 total.
