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    Late Pleistocene
    Middle Pleistocene
   Late Cretaceous
   Early Cretaceous
   Late Jurassic
   Middle Jurassic
   Early Jurassic
   Late Triassic
   Middle Triassic
   Early Triassic
   Late Devonian
   Middle Devonian
   Early Devonian
   Late Ordovician
   Middle Ordovician
   Early Ordovician
    Cambrian Stage 10
   Cambrian Series 3
    Cambrian Stage 5
   Cambrian Series 2
    Cambrian Stage 4
    Cambrian Stage 3
    Cambrian Stage 2
  Early Imbrian
  Basin Groups
Hierarchy:Phanerozoic Paleozoic  Carboniferous   Pennsylvanian
Classification:Age (as per International Commission on Stratigraphy)
Top:315.2 ± 0.2 Ma
Base:323.2 ± 0.4 Ma
Follows:Mississippian Serpukhovian
GSSP:Arrow Canyon, Nevada, USA
GSSP location:36.7333°N, 114.7780°W
GSSP link:View Global Boundary Stratotype Section and Point of the International Commission on Stratigraphy

Geologic Events

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

Overview of geological time

List all geological events
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