The Triassic period its the first period of the Mesozoic era,know because there was the first dinosaurs and more Mammal-Like Reptiles,like Placerias,Lystrosaurus,etc...
|Time of Start:||250 Mya
(millions of years ago)
|Time of ending:||200 Mya|
|Extinctions:||One(at 201 Mya)|
Triassic Mass Extinction.
Community content is available under CC-BY-SA unless otherwise noted.