Question

What actually happened during the Cambrian period?

Answer 1

Cambrian period is the first period of Paleozoic era.In this period,Cambrian explosion has occured.The life has evolved very quickly and formed variety of organisms.Most of the major groups evolved in this period.Sudden appearance of complex fossils occured in this period ,indicating evolution of variety of animals and plants in this period.This is called Cambrian explosion.