PaleoDB taxon number: 56421
Full reference: E. Buffetaut, V. Suteethorn, and H. Tong. 1996. The earliest known tyrannosaur from the Lower Cretaceous of Thailand. Nature 381:689-691
Sister taxa: none
Type specimen: PW 9-1, a set of postcrania. Its type locality is Phu Wiang 9, which is in a Barremian/Aptian terrestrial sandstone in the Sao Khua Formation of Thailand.
Ecology: ground dwelling carnivore