Mass Extinction Events

Question 1

Q: Name the five major mass extinction events.

Answer 1

A:

End-Ordovician
Late-Devonian
End-Permian
End-Triassic
End-Cretaceous

Question 2

Q: What happened during the End-Cretaceous extinction?

Answer 2

A: It wiped out all non-avian dinosaurs and other groups like ammonites, mosasaurs, and pterosaurs.