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This is a list of extinction events, both mass and minor: [1] "Big Five" major extinction events (see graphic) Marine extinction intensity during Phanerozoic %
The effects of mass extinction events varied widely. After a major extinction event, usually only weedy species survive due to their ability to live in diverse habitats. [194] Later, species diversify and occupy empty niches. Generally, it takes millions of years for biodiversity to recover after extinction events. [195]
The Late Ordovician mass extinction (LOME), sometimes known as the end-Ordovician mass extinction or the Ordovician-Silurian extinction, is the first of the "big five" major mass extinction events in Earth's history, occurring roughly 445 million years ago (Ma). [1]
The most famous of these mass extinction events — when an asteroid slammed into Earth ... lower, respectively — played a major role in the earliest identified mass extinction event, the end ...
By the time the Cretaceous-Paleogene, or K/Pg, extinction event was over, about three-quarters of species alive at the time of impact had disappeared forever. ... but the survival of plants is at ...
The Triassic–Jurassic (Tr-J) extinction event (TJME), often called the end-Triassic extinction, marks the boundary between the Triassic and Jurassic periods, . It is one of five major extinction events , profoundly affecting life on land and in the oceans.
Volcanic activity, particularly that of large igneous provinces, has been speculated to have been the cause of the environmental crisis. [3] The emplacement of the Namaqualand–Garies dykes in South Africa has been dated to 485 mya, the time at which the Cambrian–Ordovician extinction event occurred, although there remains no unambiguous evidence of a causal relationship between this ...
There is no general agreement on where the Quaternary extinction event ends, and the Holocene, or anthropogenic, extinction begins, or if they should be considered separate events at all. [248] [249] Some authors have argued that the activities of earlier archaic humans have also resulted in extinctions, though the evidence for this is ...