Protodonata

Millions of years ago, almost everything seemed to come in one size: big. Count Protodonata in that group, which were ancient dragonfly-life creatures. They were the biggest insects ever known on Earth. These monstrous insects were probably the first creatures to fly. They could perform aerial maneuvers never seen before by any prey, or predators. This gave the dragonflies a survival advantage that lasted until the dinosaurs came along.