Earth's sixth mass extinction event already under way, scientists warn
theguardian.com
theguardian.com
If we look at WP [0] there were way more than five extinctions in the past, but each extinction is preceded by an explosion of new life forms, and that is what define many "geologic periods":
* Great Oxygenation Event: Multicellular life forms emerge.
* End-Ediacaran extinction led to the Cambrian explosion: Animal phyla appears
* Cambrian–Ordovician extinction event led to the Great Ordovician Biodiversification Event: Pelagic life forms colonize reefs and shallow waters.
* Ordovician–Silurian extinction events led to Silurian period which saw multi-cellular life moving to earth, not only on sea. On sea, fishes and sharks were now thriving.
* Plants thrived in Devonian after most Silurian life disappeared in another "extinction".
* etc, etc
[0] https://en.wikipedia.org/wiki/Extinction_event#List_of_extin...
(edited)
Can't wait to see your contradicting research, comprehensive enough you might get a nobel prize.
To be clear, the process here is the opposite of dogma.
Would you have sided with the majority of the Mathematics community who have "dedicated their life to submitting work to peer review" in the 19th century when they were trying to force Cantor out of academia for his creation of the "evil and nonintellectual" Set Theory, which contradicted what they had known about Maths at that time?