Triassic

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Scope note
The first period of the Mesozoic, extending from about 250 to 208 million years ago. Following the mass extinctions of the Permian, many new forms of flora and fauna emerged in the Triassic including ocean reptiles and terrestrial vertebrates such as dinosaurs. The first mammals, small shrew-like creatures, appeared in the late Triassic.
Triassic
Accepted term: 18-Nov-2024