Kelmayisaurus

Kelmayisaurus is an extinct genus of carcharodontosaurid theropod dinosaur from the Early Cretaceous. It was roughly 10–12 meters (33–39 feet) long and its name refers to the petroleum-producing city of Karamay in the Xinjiang province of western China near where it was found.

Kelmayisaurus is known from the holotype and only specimen IVPP V 4022. It consists of a complete left dentary with teeth and partial left maxilla. The specimen was found in the Lianmuqin Formation of the Tugulu Group, dating to the Valanginian-Albian stages between 140–100 million years ago. The discovery locality is near Wuerho in the Junggar Basin. It was first named and described by Chinese paleontologist Dong Zhiming in 1973 and the type species is Kelmayisaurus petrolicus.

A supposed second species, K. "gigantus", was mentioned in a popular book as being a 21 meter (69 foot) long vertebral column from the Middle Jurassic Shishugou Formation. It is a nomen nudum and does not pertain to Kelmayisaurus, but instead appears to be a lapsus calami for the sauropod Klamelisaurus.