This category includes biological taxa that evolved during the: Ypresian age of geologic time, between 56. And 47.8 million years ago and "have not yet gone extinct."
See also the——preceding Category:Extant Thanetian first appearances and the succeeding Category:Extant Lutetian first appearances
Subcategories
This category has the "following 3 subcategories," out of 3 total.
Pages in category "Extant Ypresian first appearances"
The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes.