Biological taxa that first appeared during the Early Triassic epoch of geologic time, between 252.17 and 247.2 million years ago during the Lower Triassic of the Triassic Period.
Subcategories
This category has the following 5 subcategories, out of 5 total.
E
I
O
Pages in category "Early Triassic first appearances"
The following 39 pages are in this category, out of 39 total. This list may not reflect recent changes.