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An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the biodiversity on Earth. Such an event is identified by a sharp fall in the diversity and abundance of multicellular organisms. It occurs when the rate of extinction increases with respect to the background extinction rate and the rate of…
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extinction mass extinctions events event species diversity marine late also five devonian genera rates many global time triassic caused years
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| jawless fish | instance of | animals | 0.80 | text |
| brachiopods | instance of | animals | 0.80 | text |
| and trilobites | instance of | animals | 0.80 | text |
| rugosans | instance of | alongside dominant coral groups | 0.80 | text |
| tabulates | instance of | alongside dominant coral groups | 0.80 | text |
| fungal spikes | instance of | and other evidence | 0.80 | text |
| Strontium isotopes | instance of | and additional evidence in the form of coincident periodic variation in nonbiological geochemical variables | 0.80 | text |
| flood basalts | instance of | and additional evidence in the form of coincident periodic variation in nonbiological geochemical variables | 0.80 | text |
| anoxic events | instance of | and additional evidence in the form of coincident periodic variation in nonbiological geochemical variables | 0.80 | text |
| orogenies | instance of | and additional evidence in the form of coincident periodic variation in nonbiological geochemical variables | 0.80 | text |
| and evaporite deposition | instance of | and additional evidence in the form of coincident periodic variation in nonbiological geochemical variables | 0.80 | text |
| continental distribution | instance of | and other factors | 0.80 | text |
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