Answer;
Mesozoic
A collision with a large meteorite may have contributed to the mass extinction at the end of the Mesozoic era.
Step-by-step explanation;
- The Mesozoic Era is the era known as the age of the dinosaurs and lasted almost 180 million years.
- Mesozoic Era consist of three periods namely the Triassic, Jurassic, and Cretaceous periods.
- The beginning and the end of Mesozoic Era was marked by a mass-extinction. It is believed that the mass extinction was caused by a meteorite impact, that caused the end-,Mesozoic extinction.
- The mass extinction wiped about 95% of marine life and 70% of land life. This mass extinction caused the transition from the Paleozoic era to the Mesozoic era.