Geological Time/Mesozoic Era/Triassic Period

Triassic

252 to 201 million years ago. The first period of the Mesozoic; saw the rise of dinosaurs and mammals.

Triassic · 251.902–201.4 Mya51 Myr durationMesozoic Era

Where in time

Cambrian538.8–486.9 Mya

Ordovician486.9–443.1 Mya

Silurian443.1–419.6 Mya

Devonian419.6–358.9 Mya

Carboniferous358.9–298.9 Mya

Permian298.9–251.9 Mya

Triassic251.9–201.4 Mya

Jurassic201.4–143.1 Mya

Cretaceous143.1–66 Mya

Paleogene66–23.0 Mya

Neogene23.0–2.6 Mya

Quaternary2.6–0 Mya

About

The Triassic opened with the world's most catastrophic mass extinction and closed with another. In between, the first dinosaurs, mammals, pterosaurs, and turtles appeared on a Pangaean supercontinent.

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