Question

Which of the following allowed for the radiation of the dinosaurs ? this question doesn't make sense ? but that's how its worded ! sorry.. a- an asteroid impact at the end of the cretaceous period b- the cambrian explosion c- the beginning of the cenozoic era d- triassic period mass extinction?

Answer 1

My answer to this question of radiation of the dinosaurs happened at d. Triassic period.

It happened in between the end of Triassic Period and the Early Jurassic Period.
There is only a little study about this event but findings said that radiation did happen.