Permian

related topics
{specie, animal, plant}
{island, water, area}
{acid, form, water}

The Permian[note 1] is a geologic period and system characterized among land vertebrates by the diversification of the early amniotes into the ancestral groups of the mammals, turtles, lepidosaurs and archosaurs. The Permian Period follows the Carboniferous and extends from 299.0 ± 0.8 to 251.0 ± 0.4 Mya (million years before the present). It is the last period of the Paleozoic Era and famous for its ending epoch event, the largest mass extinction known to science. The Permian Period was named after the kingdom of Permia in modern-day Russia by Scottish geologist Roderick Murchison in 1841.

Contents

ICS Subdivisions

Official (ICS, 2004,[5] chart) Subdivisions of the Permian System, from most recent to most ancient rock layers are:

  • Changhsingian (Changxingian) [253.8 ± 0.7 Mya - 251.0 ± 0.4 Mya]
  • Wuchiapingian (Wujiapingian) [260.4 ± 0.7 Mya - 253.8 ± 0.7 Mya]
  • Others:
    • Waiitian (New Zealand) [260.4 ± 0.7 Mya - 253.8 ± 0.7 Mya]
    • Makabewan (New Zealand) [253.8 - 251.0 ± 0.4 Mya]
    • Ochoan (North American) [260.4 ± 0.7 Mya - 251.0 ± 0.4 Mya]
  • Capitanian stage [265.8 ± 0.7 - 260.4 ± 0.7 Mya]
  • Wordian stage [268.0 ± 0.7 - 265.8 ± 0.7 Mya]
  • Roadian stage [270.6 ± 0.7 - 268.0 ± 0.7 Mya]
  • Others:
    • Kazanian or Maokovian (European) [270.6 ± 0.7 - 260.4 ± 0.7 Mya][8]
    • Braxtonian stage (New Zealand) [270.6 ± 0.7 - 260.4 ± 0.7 Mya]

Full article ▸

related documents
Coral
Sequoiadendron
Dugong
Coelacanth
Procellariiformes
Springtail
Cloudinid
Triassic
Megatherium
Symbiosis
Pig
European Robin
Tasmanian Devil
Arabidopsis thaliana
Ammonite
Black panther
Karyotype
Fern
Inflorescence
Indri
Firefly
Chihuahua (dog)
Macaw
Skunk
Primate
Prairie dog
Mistletoe
Cannabis
Antarctic krill
Ostrich