252–201 Mya

The Triassic

After the greatest extinction of all time, a new kind of animal rises from the ashes — small, quick, and easy to underestimate. The age of dinosaurs begins.

TriassicJurassicCretaceous

3 dinosaurs from this period in our field guide, largest first:

PlateosaurusPlateosauridae8 m · Herbivore
HerrerasaurusHerrerasauridae4.5 m · Carnivore
CoelophysisCoelophysidae3 m · Carnivore