Pterosaur was the first vertebrate to fly. They lived between 228 million and 66 million years ago and became extinct in the late Cretaceous. During the tens of millions of years when pterosaurs flew in the ancient sky, they evolved into many species: some were very small, such as the sparrow-sized secluded forest pterosaurs, which lived in China 65.438+0.2 billion years ago; Some are huge, such as the very famous Fengshen pterosaur. They are as tall as giraffes. It is speculated that this pterosaur will prey on small dinosaurs with its long beak like a stork holding a frog.

Pterosaur, also known as pterosaur, is an extinct reptile with nearly 100 species. Although living in the same era as dinosaurs, pterosaurs are not dinosaurs, which means "winged lizards" in Greek, but an evolutionary branch of flying reptiles. It lived from the late Triassic to the late Cretaceous, about 228 million years ago to 65 million years ago. Pterosaur was the first vertebrate to fly. Pterosaur's wings came from the skin film between the side of the body and the four phalanges of the wings. Early species had long jaws and long tails that covered teeth; Later species greatly shortened their tails and lacked teeth. Pterosaur's body shape has changed greatly, from the forest pterosaur of birds to the largest flying creatures that have appeared on the earth, such as Fengshen pterosaur and Hazgo pterosaur, with a wingspan of more than 12 meters, teeth as long as 10 cm and a huge and sharp mouth.