Mass extinction events

Over the course of Earth's history, there have been five major extinction events. How many can you name?
Loss = loss in number of species
Quiz by KevinTheCat
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Last updated: May 6, 2024
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First submittedMay 5, 2024
Times taken10
Average score80.0%
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mya
Event
Loss
445
Late Ordovician
85%
372
Late Devonian
70%
252
Permian–Triassic
90%
201
Triassic–Jurassic
76%
66
Cretaceous–Paleogene
75%
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