What is Triassic?

  • (noun): From 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity.
    Synonyms: Triassic period


The Triassic is a geologic period and system that extends from about 250 to 200 Ma (252.2 ± 0.5 to 201.3 ± 0.2 million years ago). It is the first period of the Mesozoic Era, and lies between the Permian and Jurassic periods. Both the start and end of the period are marked by major extinction events. The Triassic was named in 1834 by Friedrich Von Alberti, after the three distinct rock layers (tri meaning "three") that are found throughout Germany and northwestern Europe—red beds, capped by chalk, followed by black shales—called the 'Trias.'

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Some articles on Triassic:

Therocephalia - Classification
... therocephalians, however, outlasted the gorgonopsids, persisting into the early-Middle Triassic period ... Therocephalians and cynodonts both survived the Permian-Triassic mass extinction, but while therocephalians soon went extinct, cynodonts underwent rapid diversification ... Most Triassic therocephalian lineages originated in the Late Permian, and lasted for only a short period of time in the Triassic ...
Geology Of The North Sea - Permo-Triassic Rifting and Thermal Subsidence
... The Mesozoic era consisted of the Triassic (251.0 Ma to 199.6 Ma) Jurassic (199.6 Ma to 145.5 Ma) and Cretaceous (145.5 Ma to 66 Ma) periods ... During the Triassic period, the Viking and Central Graben volcanic systems were formed ... Upward thrusting rifts were formed during the Triassic comprising the taphrogenic stage ...
Triassic-Jurassic Extinction Event
... The Triassic period ended with a mass extinction, which was particularly severe in the oceans the conodonts disappeared, and all the marine reptiles except ... Though the end-Triassic extinction event was not equally devastating everywhere in terrestrial ecosystems, several important clades of crurotarsans (large archosaurian ... What caused this Late Triassic extinction is not known with certainty ...
... Capitanian stage of the Late Permian to the Anisian stage of the Middle Triassic, 266-237 million years ago ... These are common fossils subsequent to the Permian-Triassic boundary, suggesting that the genus experienced rapid diversification during and after the Permian–Triassic extinction event ...
São Gabriel - Paleontology
... São Gabriel fossils of ancient amphibians and reptiles whose ages range from the Permian to the Triassic have been found ... Age Late Permian and/or Early Triassic ... Age Late Triassic ...