During the 4th Extinction, or Triassic-Jurassic extinction, 90% of all species died within just 10,000 years. The 4th Extinction was thought by many scientists to have been caused by massive volcanic activity or asteroid impacts resulting in severe climate change.
There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.
A major extinction event.
i dont know y u askin me ;D
The major extinction that preceded the Mesozoic era is called the Permian-Triassic extinction event, also known as the Great Dying. It occurred around 252 million years ago and is considered the most severe mass extinction event in Earth's history, wiping out approximately 96% of marine species and 70% of land species.
i heard that it was the exsistance and extinction of the dinosours and the continuing breakup of Pangaea
There were major asteroid impacts. #fuckschool #imheretohelp
Avian dinosaurs survived the extinction event of the dinosaurs.
the idea that extinction evedince is a natural event
No, child, I was not a witness to the Permian Extinction. The Permian extinction event is the only known mass extinction of insects. The Permian extinction event occurred about 252 million years ago.
Catastrophic extinction event.
The major event that began about 225 million years ago was the Triassic-Jurassic extinction event, which marked the end of the Triassic Period and the start of the Jurassic Period. This event led to the extinction of approximately 50% of marine life species and set the stage for the dominance of dinosaurs in the Jurassic Period.
I think it's extinction. ------------------------------- More specifically an "extinction event".