Permian Mass Extinction

When was the Permian Mass Extinction?

How long did the Mass extinction last?

In the Permian-Triassic extinction event [blank_start]96[blank_end]% of all species went extinct, meaning that all life today has evolved from the remaining [blank_start]4[blank_end]%

The asteroid impact theory is supported by a super crater found in [blank_start]Mexico[blank_end]. Also, fullerenes have been dated to this time period, fullerenes can only be formed in extreme [blank_start]temperatures[blank_end] such as [blank_start]meteorite[blank_end] impact or [blank_start]forest[blank_end] fires.

The [blank_start]eruption[blank_end] theory is when [blank_start]volcanoes[blank_end] in [blank_start]Siberia[blank_end] erupted and spewed out 2 million square kilometres of lava.

In the environmental theory there were drops in [blank_start]oxygen[blank_end] and a rise in [blank_start]carbon dioxide[blank_end] levels.