Sinotyrannus was a basal tyannosauroid, related to Guanlong, that lived in the Aptian period of what is now China. Though only a mid-size theropod, it was far larger than any contemporary predator, and one of the first tyrannosaurs to be the apex predator of their ecosystems.
Planet Dinosaur Edit
In Lost World, the caption refers to the Zuni Basin tyrannosaurs as Sinotyannus, even though John Hurt clearly says "Zunityrannus". These tyrannosaurs, unidentified at the time the show was made, have since been described as a North American representative of another Asian tyrannosaur, Timurlengia.