Biological taxa that first appeared during the Santonian age of geologic time, between 86.3 and 83.6 million years ago.
This category has the following 3 subcategories, out of 3 total.
The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes.
Biological taxa that first appeared during the Santonian age of geologic time, between 86.3 and 83.6 million years ago.
This category has the following 3 subcategories, out of 3 total.
The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes.