Insects

The insects that survived the late Permian extinction evolved in the Triassic (252 to 201 million years ago).

An excerpt from the article 17 facts about insects
It was in the Triassic that all orders of currently living insects arose. Today's insect families developed mainly in the Jurassic (201 - 145 million years ago). In turn, representatives of the genera of today's insects began to form during the dinosaurs' extinction period 66 million years ago. Many insects from this period are well preserved in amber.