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Late Ordovician mass extinction: 445-444 Ma Global cooling and sea level drop, and/or global warming related to volcanism and anoxia [43] Cambrian: Cambrian–Ordovician extinction event: 488 Ma: Kalkarindji Large Igneous Province? [44] Dresbachian extinction event: 502 Ma: End-Botomian extinction event: 517 Ma: Precambrian: End-Ediacaran ...
These two closely spaced extinction events collectively eliminated about 19% of all families, 50% of all genera [6] and at least 70% of all species. [11] Sepkoski and Raup (1982) [ 2 ] did not initially consider the Late Devonian extinction interval ( Givetian , Frasnian, and Famennian stages) to be statistically significant. [ 2 ]
A different culprit, however, does explain several smaller extinction episodes and at least two mass extinctions, including the largest on record. Apocalyptic volcanoes that caused global warming
Permian–Triassic boundary at Frazer Beach in New South Wales, with the End Permian extinction event located just above the coal layer [2]. Approximately 251.9 million years ago, the Permian–Triassic (P–T, P–Tr) extinction event (PTME; also known as the Late Permian extinction event, [3] the Latest Permian extinction event, [4] the End-Permian extinction event, [5] [6] and colloquially ...
Following the Permian–Triassic extinction event, the most devastating of all mass-extinctions, life recovered slowly.In the Middle Triassic, many groups of organisms reached higher diversity again, such as the marine reptiles (e.g. ichthyosaurs, sauropterygians, thallatosaurs), ray-finned fish and many invertebrate groups like molluscs (ammonoids, bivalves, gastropods).
Wikipedia categories named after mass extinctions (3 C) D. Documentary films about extinctions (5 P) P. Phanerozoic extinctions (5 C) T. Mass extinction timelines (3 ...
Scientists, conservationists and government representatives will gather this week in Montreal to decide on a plan to stop a stunning loss of plant and animal life around the globe. The United ...
[2] [3] [4] Overall, 19% of all families and 50% of all genera became extinct. [5] A second mass extinction called the Hangenberg event, also known as the end-Devonian extinction, [6] occurred 359 million years ago, bringing an end to the Famennian and Devonian, as the world transitioned into the Carboniferous Period. [7]