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Permian

Hierarchy:Phanerozoic Paleozoic
  Permian
Classification:Period (as per International Commission on Stratigraphy)
Top:252.17 ± 0.06 Ma
Base:298.9 ± 0.15 Ma
Preceeds:Mesozoic Triassic  Early Triassic   Induan
Follows:Carboniferous Pennsylvanian  Gzhelian
Primary Divisions:LopingianGuadalupianCisuralian
FGDC code:P
Landmasses unite into supercontinent Pangaea, creating the Appalachians.

End of Permo-Carboniferous glaciation.

Synapsid reptiles (pelycosaurs and therapsids) become plentiful, while parareptiles and temnospondyl amphibians remain common. In the mid-Permian, coal-age flora are replaced by cone-bearing gymnosperms (the first true seed plants) and by the first true mosses. Beetles and flies evolve.

Marine life flourishes in warm shallow reefs; productid and spiriferid brachiopods, bivalves, forams, and ammonoids all abundant.

Permian-Triassic extinction event occurs 251 Ma: 95% of life on Earth becomes extinct, including all trilobites, graptolites, and blastoids.

Ouachita and Innuitian orogenies in North America.

Uralian orogeny in Europe/Asia tapers off.

Altaid orogeny in Asia.

Hunter-Bowen Orogeny on Australian continent begins (c. 260–225 Ma), forming the MacDonnell Ranges.
 

Geologic Events

Event NameTypeAgeArea
Hunter-Bowen orogeny (begins)Orogeny260 - 225 MaAustralia
Mauritanide Belt orogeny (concludes)Orogeny~320 - ~270 MaWest Africa
Uralian orogeny (concludes)Orogeny~320 - ~175 MaRussia
Pangaea assembly (concludes)Continental Assembly335 - 272 MaGlobal
Variscan/Hercynian orogeny (concludes)Orogeny~400 - ~280 MaEurope/North America


Overview of geological time

List all geological events
Mineral and/or Locality  
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