Mammals evolved from therapsid reptiles in Triassic period. The type of skull in these reptiles is `:`

Reptiles emerged in the Triassic period.

Which period is the age of reptiles ?

Mammals having traits of both reptiles and mammals are

Earliest reptiles evolved in the period

Which reptile went back into water to evolve into fish like reptile?

Which reptile went back into water to evolve into fish likfe reptile?

Some of the land reptiles went back into the water to evolve into fish-like reptiles (e.g. ichthyosaurs), probably around