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Era

Triassic

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Phanerozoic

The Triassic is the first and shortest period of the Mesozoic Era, spanning about 251.902 to 201.4 million years ago. It began in the aftermath of the Permian-Triassic extinction and ended with the Triassic-Jurassic extinction event; archosaurs, including the early dinosaur lineages, were the chief terrestrial vertebrates while Pangaea began to rift apart late in the period. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Rank
Period 1
Start (Million Years Ago)
251.902 1
Standard boundary age from the ICS International Chronostratigraphic Chart; not independently re-dated by this atlas.
End (Million Years Ago)
201.4 1
Standard boundary age from the ICS International Chronostratigraphic Chart; not independently re-dated by this atlas.
Key Event
Reptiles, especially archosaurs, were the chief terrestrial vertebrates of the Triassic, against a mostly hot, dry global climate with deserts spanning much of Pangaea's interior. 1
Connections

Associated With

Source Permian-Triassic Extinction Event (Wikipedia)
Source Triassic-Jurassic Extinction Event (Wikipedia)

Has Geologic Rank

Precursor To

Jurassic, Eras
Sources
1. Triassic (Wikipedia)
Wikimedia Foundation
  • Introduction
    The Triassic Period is the first and shortest geologic period of the Mesozoic Era
  • Fauna and climate
    Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time
  • Climate
    The global climate during the Triassic was mostly hot and dry, with deserts spanning much of Pangaea's interior
  • Classification
  • Timespan (start)
  • Timespan (end)
View the Source
Permian-Triassic Extinction Event (Wikipedia)
Wikimedia FoundationAssociated With: Permian-Triassic Extinction EventView the Source
Triassic-Jurassic Extinction Event (Wikipedia)
Wikimedia FoundationAssociated With: Triassic-Jurassic Extinction EventView the Source
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