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- There have been six major extinction events12. They are:
- Ordovician-Silurian Extinction: Occurring about 443.8 million years ago, this was the first major mass extinction event. It marked the end of the life of small aquatic organisms12.
- Devonian Extinction: It marks the extinction of tropical marine life forms1.
- Permian-Triassic Extinction: It is the largest mass extinction known which depleted a wide range of species, including vertebrates12.
- Triassic-Jurassic Extinction1.
- Cretaceous-Tertiary Extinction12.
- Sixth Mass Extinction12.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Six Mass Extinctions
- Ordovician-Silurian Extinction During this extinction, the life of small aquatic organisms ended. ...
- Devonian Extinction It marks the extinction of tropical marine life forms. ...
byjus.com/biology/mass-extinctions/Major Mass Extinctions
- Ordovician-Silurian extinction Occurring about 443.8 million years ago, the Ordovician-Silurian extinction was the first major mass extinction event. ...
- Late Devonian extinction ...
www.britannica.com/list/major-mass-extinctions - People also ask
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WEB34 rows · This is a list of extinction events, both mass and minor: [1] "Big Five" major extinction events (see graphic) The blue graph shows the apparent percentage (not the absolute number) of marine animal genera becoming extinct during any given time interval.
See all 34 rows on en.wikipedia.orgPERIOD OR SUPE… EXTINCTION DATE PROBABLE CAUSE… Quaternary Holocene extinction c. 10,000 BC – Ongo… Humans [3] Quaternary Quaternary extinctio… 640,000, 74,000, an… Unknown; may inclu… Neogene Pliocene–Pleistocen… 2 Ma Possible causes incl… Neogene Middle Miocene disr… 14.5 Ma Climate change due …
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