Permian
Sign in to saveThe Permian ( ) is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period Ma (million years ago) to the beginning of the Triassic Period 251.902 Ma. It is the sixth and last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia.
AI overview
The Permian is a geologic time period that lasted about 47 million years and occurred roughly 300 to 250 million years ago, marking the final chapter of the Paleozoic Era before the Mesozoic Era began. It matters because understanding this ancient period helps scientists piece together Earth's geological history and the major transitions that occurred in the planet's rocks, climate, and life forms over deep time.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Geologic timespan.color
- Permian
- Geologic timespan.time_start
- 298.9
- Geologic timespan.time_start_uncertainty
- 0.15
- Geologic timespan.time_end
- 251.902
- Geologic timespan.time_end_uncertainty
- 0.024
- Geologic timespan.image_map
- Mollweide Paleographic Map of Earth, 275 Ma (Kungurian Age).png
- Geologic timespan.caption_map
- A map of Earth as it appeared 275 million years ago during the Permian Period, Cisuralian Epoch
- Geologic timespan.timeline
- Permian
- Geologic timespan.name_formality
- Formal
- Geologic timespan.usage
- Global (ICS)
- Geologic timespan.timescales_used
- ICS Time Scale
- Geologic timespan.chrono_unit
Article
23 sectionsContents
- Etymology and history
- Geology
- Cisuralian
- Guadalupian
- Lopingian
- Regional stages
- Paleogeography
- Paleoceanography
- Climate
- Life
- Marine biota
- Terrestrial biota
- Insects
- Tetrapods
- Amniotes
- Amphibians
- Fish
- Flora
- Permian–Triassic extinction event
- See also
- References
- Further reading
- External links
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years, from the end of the Carboniferous Period Ma (million years ago) to the beginning of the Triassic Period 251.902 Ma. It is the sixth and last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia.
The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids (reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their amphibian ancestors.