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About: Olson's Extinction     Goto   Sponge   NotDistinct   Permalink

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Type: yago:Abstraction100002137yago:Event100029378yago:PsychologicalFeature100023100yago:YagoPermanentlyLocatedEntityyago:WikicatExtinctionEvents New Facet based on Instances of this Class

Olson's Extinction was a mass extinction that occurred 273 million years ago in the late Cisuralian or early Guadalupian of the Permian period and which predated the Permian–Triassic extinction event. It is named after Everett C. Olson. There was a sudden change between the early Permian and middle/late Permian faunas. Some authors also place a hiatus in the continental fossil record around that time, but others disagree. Since then this event has been realized across many groups, including plants, marine invertebrates, and tetrapods.