Qiaowanlong was a genus of sauropod dinosaur from the Albian stage of the Early Cretaceous Period (100 million years ago). It was discovered in 2007 in the Yujinzi Basin of Gansu, China. It was first described in 2009 in the Proceedings of the Royal Society B. The type species is Q. kangxii.
The only known specimen consists of cervical vertebrae, a right pelvic bone and several unidentified smaller fragments. The remains come from the geological formation known as the Xinminpu Group. Qiaowanlong was the first genus of brachiosaurid found in China. It is believed to be closely related to Sauroposeidon, a species from North America.
Qiaowanlong was believed to be about 39 feet in length and weighed nearly 11 tons.It is estimated to have had a length of around 12 m and would have weighed around 10 tonnes. Qiaowanlong is thought to be closely related to Sauroposeidon, a North American genus. The type species is Q. kangxii.