Category:Pennsylvanian first appearances
Appearance
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.
Subcategories
This category has the following 5 subcategories, out of 5 total.
Pages in category "Pennsylvanian first appearances"
The following 90 pages are in this category, out of 90 total. This list may not reflect recent changes.