A related study also noted a locking mechanism in the lower jaw shared between the two genera. In a separate paper, Currie noted the possibility that "Alioramus" might represent a juvenile "Tarbosaurus", but stated that the much higher tooth count and more prominent nasal crests in "Alioramus" suggest it is a distinct genus. Similarly, Currie uses the high tooth count of "Nanotyrannus" to suggest that it may be a distinct genus, rather than a juvenile "Tyrannosaurus" as most other experts believe. However, the discovery and description of "Qianzhousaurus" reveals that "Alioramus" is not a close relation to "Tarbosaurus", instead belonging to a newly described tribe of tyrannosaurids; the Alioramini. "Qianzhousaurus" further reveals that similar long-snouted tyrannosaurids were widely distributed throughout Asia and would have shared the same environment while avoiding competition with larger and more robust tyrannosaurines by hunting different prey.