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Phenomena

Permian-Triassic Extinction Event

Stratigraphy

Known as the Great Dying, Earth's most severe known mass extinction, occurring about 251.9 million years ago at the boundary between the Permian and Triassic periods over a span of roughly 60,000 to 100,000 years. An estimated 81 percent of marine species and 70 percent of terrestrial vertebrate species were lost, primarily attributed to the flood basalt eruptions that produced the Siberian Traps, which released huge volumes of carbon dioxide and sulfur dioxide and drove global warming, ocean acidification and widespread marine anoxia. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Magnitude or Scale
81 percent of marine species, 70 percent of terrestrial vertebrate species, 57 percent of biological families and 62 percent of genera lost. 1
Location
Global, with the Siberian Traps flood basalts, in present-day Siberia, identified as the primary volcanic source. 1
Connections

Associated With

Permian, Eras
Source Permian-Triassic Extinction Event (Wikipedia)
Triassic, Eras
Source Permian-Triassic Extinction Event (Wikipedia)

Caused By

Volcanism, Processes

Read from this phenomenon's own Wikipedia article (Permian-Triassic Extinction Event); earth5 pass cause judgment: Volcanism.

Source Wikidata: Permian-Triassic Extinction Event

In Discipline

Stratigraphy, Disciplines
In the Other Atlases

Found In

Russia

Also in Geography Atlas: where this subject is found.

Siberia

Also in Geography Atlas: where this subject is found.

Source Permian-Triassic Extinction Event (Wikipedia)
Sources
1. Permian-Triassic Extinction Event (Wikipedia)
Wikimedia Foundation
  • Lead section
    The scientific consensus is that the main cause of the extinction was the flood basalt eruptions that created the Siberian Traps, which released sulfur dioxide and carbon dioxide, resulting in euxinia (oxygen-starved, sulfurous oceans), elevated global temperatures, and acidified oceans.
  • Associated With: Permian
  • Associated With: Triassic
  • In Group: Mass Extinction Events, Lead sentence
    The Permian-Triassic extinction event, colloquially known as the Great Dying, was an extinction event that occurred around the boundary between the Permian and Triassic geologic periods, and with them the Paleozoic and Mesozoic eras.
View the Source
Wikidata: Permian-Triassic Extinction Event
Wikidata Q141118, class allow-list match (w-wdresolver-0926)View the Source
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