Chaoyangopterus

Chaoyangopterus is a genus of azhdarchoid pterodactyloid pterosaur known from a partial skeleton found in Liaoning, China. It was found in rocks of the Aptian-age Lower Cretaceous Jiufotang Formation of Dapingfang, Chaoyang.

The genus was named and described in 2003 by Wang Xiao-Lin and Zhou Zhong-He. The type species is Chaoyangopterus zhangi. The genus name is derived from Chaoyang and a Latinised Greek pteron, "wing". The specific name honours journalist Zhang Wanlian for his efforts in protecting fossil sites.

The genus is based on holotype IVPP V13397, which includes the front of the skull, the lower jaws, the neck vertebrae, the shoulder and pelvic girdles, and the limbs. The skull is about 270 millimeters long (10.6 inches) and toothless, and its wingspan is estimated to have been around 1.85 meters (6.07 feet). Wang and Zhou concluded that it compared most closely to Nyctosaurus and classified it as a nyctosaurid, although they found that its shin was proportionally longer compared to the femur and humerus in Chaoyangopterus, that their animal had relatively shorter wings and longer legs than Nyctosaurus, and that it still had four fingers.