Biological taxa that first appeared during the Triassic period, the geologic time, between 252 and 201.3 million years ago.
Subcategories
This category has the following 5 subcategories, out of 5 total.
E
G
L
M
Pages in category "Triassic first appearances"
The following 43 pages are in this category, out of 43 total. This list may not reflect recent changes.