i dont know y u askin me ;D
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.
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
The major event that separated the Paleozoic and Mesozoic eras is the Permian-Triassic extinction event, which occurred around 252 million years ago. This event is considered the largest mass extinction in Earth's history, leading to the extinction of approximately 90% of marine species and 70% of terrestrial vertebrate species. The dramatic loss of biodiversity set the stage for the rise of dinosaurs and the dominance of reptiles in the Mesozoic era.
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.
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.
Catastrophic extinction event.
First major extinction (c. 440 mya): Climate change (relatively severeand sudden global cooling) seems to have been at work at the first ofthese-the end-Ordovician mass extinction that caused such pronouncedchange in marine life (little or no life existed on land at that time). 25%of families lost (a family may consist of a few to thousands of species).