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2. List of extinction events - Wikipedia

   en.wikipedia.org/wiki/List_of_extinction_events

   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 ...

3. Extinction event - Wikipedia

   en.wikipedia.org/wiki/Extinction_event

   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 .

4. Late Ordovician mass extinction - Wikipedia

   en.wikipedia.org/.../Late_Ordovician_mass_extinction

   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]

5. What is a mass extinction, and why do scientists think we’re ...

   www.aol.com/news/brief-history-end-world-every...

   The most famous of these mass extinction events — when an asteroid slammed into Earth 66 million years ago, dooming the dinosaurs and many other species — is also the most recent. But ...

6. Permian–Triassic extinction event - Wikipedia

   en.wikipedia.org/wiki/Permian–Triassic...

   It is Earth's most severe known extinction event, [10] [11] with the extinction of 57% of biological families, 83% of genera, 81% of marine species [12] [13] [14] and 70% of terrestrial vertebrate species. [15] It is also the greatest known mass extinction of insects. [16] It is the greatest of the "Big Five" mass extinctions of the Phanerozoic ...

7. The most famous extinction event in the planet's history is ...

   www.aol.com/news/biggest-extinction-event...

   For the record: 2:18 p.m. May 31, 2023: An earlier version of this story misidentified the plant that was neither growing nor deteriorating.It was Sequoia sempervirens, or coast redwood, not ...

8. Timeline of extinctions in the Holocene - Wikipedia

   en.wikipedia.org/wiki/Timeline_of_extinctions_in...

   The following list is incomplete by necessity, since the majority of extinctions are thought to be undocumented, and for many others there isn't a definitive, widely accepted last, or most recent record. According to the species-area theory, the present rate of extinction may be up to 140,000 species per year. [1]

9. Scientists Discovered a Surprise 6th Mass Extinction, Which ...

   www.aol.com/scientists-discovered-surprise-6th...

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