The permian era
permian
An asteroid impact
The Permian-Triassic extinction event. Also known as the P-Tr extinction or the Great Dying, where 96% of all life died out.
A large mass extinction took place at the end
It was set in the Great Depression era (1930)
The events of Oblivion take place at the very end of the third era - the banishing of Mehrunes Dagon is considered to be the beginning of the fourth era.
The Permian extinction event.
1865 to 1901The era
Mesozoic era
a big event like a massive extinction ends an era.
The Permian extinction event.
The Permian-Triassic (P-Tr) Extinction Event is widely recognised as the greatest extinction event on Earth. It is also known as the "Great Dieing".It occurred 251 million years ago marking the end of the Permian Period and the start of the Triassic Period.It also marks the end of the Paleozoic Era and the start of the Mesozoic Era. Estimates have suggested that 96% of marine species and 70% percent of land vertebrate species became extinct. It is also the only known mass extinction of insect with 56% of insect families and 83% of insect genera becoming extinct.Little is known of the cause of the mass extinction but theories range from meteorite impacts, to volcanism, to sea level fluctuations.
The beginning of Earth's current era is marked by a mass extinction.