ExtantTriassic first appearances, thegeologic time period between 252.2 and 201.3 million years ago.Biological taxa thatfirst appeared during theTriassic Period, and have not yet goneextinct.
This category has the following 4 subcategories, out of 4 total.
The following 34 pages are in this category, out of 34 total.This list may not reflect recent changes.
