Extinction did.
-The invention of writing
On both occasions the Paleozoic Era and the Mesozoic Era ended with a mass extinctions.
The Paleozoic ended with the Permian-Triassic (P-Tr) Extinction. This is widely recognised as the worst mass extinction of all time. It is also known as the "Great Dying". Up to 96% of all marine species, 70% of all land vertebrate species and also it is the only known mass extinction of insects with 57% of families and 83% of all genera became extinct. It also finally ended the dominance of the Synapsids (mammal like reptiles).
Similarly the Mesozoic Era ended with a mass extinction, the Cretaceous-Tertiary (K-T) Extinction. Famous for the death of the all non avian dinosaurs, pterosaurs, mosasaurs and plesiasaurs along with many other species of plants and animals.
Extinction did.
A tremendous mass extinction
Scientists believe the Cretaceous-Paleogene extinction event, or the plants dying at the end of the Mesozoic Era, was caused by a massive asteroid/comet impact. The theory suggests that the impact had catastrophic effects on the environment, including an impact winter, which prevented the plants from carrying out photosynthesis.
There were major asteroid impacts.
The Cretaceous- Tertiary Extinction
No Paleozoic is not the second era it is the first era
Paleozoic Era
The event that marks the division of the Paleozoic and Mesozoic era is the breaking up of the Pangaea
Paleozoic - climate change Mesozoic - meteor
None. Dinosaurs first appeared in the Mesozoic Era, after the Paleozoic ended.
The Paleozoic Era of geologic history occurred before the Mesozoic Era.
That would be 251 million years ago. The end of the Paleozoic era marks the beginning of the Mesozoic. The last period of the Paleozoic era was the Permian, and the first period of the Mesozoic era was the Triassic; hence the extinction event (the biggest extinction event in the earth's history), the Permian-Triassic extinction, which defines the border between the eras.
The Paleozoic precedes the Mesozoic. And our current era, the Cenozoic, follows the Mesozoic.
The Paleozoic came before the Mesozoic.
The 4 eras are Cenozoic era, the mesozoic era, the paleozoic era, and the precambrian era.
The Paleozoic precedes the Mesozoic. And our current era, the Cenozoic, follows the Mesozoic.
Paleozoic, Mesozoic and Cenozoic are examples of geological era from the Phanerozoic Eon.
mesozoic
Oldest to youngest*Precambrian Era*Paleozoic*Mesozoic*Cenozoic