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Triassic

Hierarchy:Phanerozoic Mesozoic
  Triassic
Classification:Period (as per International Commission on Stratigraphy)
Top:201.3 ± 0.2 Ma
Base:252.17 ± 0.06 Ma
Preceeds:Jurassic Early Jurassic  Hettangian
Follows:Paleozoic Permian  Lopingian   Changhsingian
Primary Divisions:Late TriassicMiddle TriassicEarly Triassic
FGDC code:^
Archosaurs dominant on land as dinosaurs, in the oceans as Ichthyosaurs and nothosaurs, and in the air as pterosaurs.

Cynodonts become smaller and more mammal-like, while first mammals and crocodilia appear.

Dicroidiumflora common on land. Many large aquatic temnospondyl amphibians. Ceratitic ammonoids extremely common. Modern corals and teleost fish appear, as do many modern insect clades.

Andean Orogeny in South America.

Cimmerian Orogeny in Asia.

Rangitata Orogeny begins in New Zealand.

Hunter-Bowen Orogeny in Northern Australia, Queensland and New South Wales ends, (c. 260–225 Ma)
 

Geologic Events

Event NameTypeAgeArea
Manicouagan impactImpact Event214 ± 1 MaQuebec, Canada
Laurasia supercontinent (begins)Supercontinent215 - 55 MaNorthern Hemisphere
Permian–Triassic extinction eventMass Extinction Event251.941 ± 0.037 - 251.880 ± 0.031 MaGlobal
Hunter-Bowen orogeny (concludes)Orogeny260 - 225 MaAustralia
Uralian orogeny (concludes)Orogeny~320 - ~175 MaRussia


Overview of geological time

List all geological events
Mineral and/or Locality  
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