[4][5] Alioramins have rather shallow snouts, a trait that is rather rare among tyrannosaurs but can be found in the early tyrannosauroid, Xiongguanlong.

These features include a maxillary process of the premaxilla that points upwards; the deep joint surface in the maxilla conceals certain features related to tooth roots; the particular shape of the lacrimal, mostly hidden from view; and an ectopterygoid with a pneumatic recess that possesses a distinctive round or triangular shape.

[11] Gorgosaurus libratus Albertosaurus sarcophagus Qianzhousaurus sinensis Alioramus altai Alioramus remotus Nanuqsaurus hoglundi Teratophoneus curriei Lythronax argestes Daspletosaurus horneri Daspletosaurus torosus Zhuchengtyrannus magnus Tarbosaurus bataar Tyrannosaurus rex Another cladogram showing the relationships of Alioramini by Loewen et al. (2013) places Alioramini outside of the Tyrannosauridae.

[12] Proceratosaurus bradleyi Kileskus aristotocus Guanlong wucaii Sinotyrannus kazuoensis Juratyrant langhami Stokesosaurus clevelandi Dilong paradoxus Eotyrannus lengi Bagaraatan ostromi Raptorex kriegsteini Dryptosaurus aquilunguis Alectrosaurus olseni Xiongguanlong baimoensis Appalachiosaurus montgomeriensis Alioramus altai Alioramus remotus Tyrannosauridae Alioramins, due to their relatively gracile build and long snouts, were likely specialized in hunting small-sized prey with quick turns.

In contrast to robust tyrannosaurids, whose juveniles underwent drastic changes in their skull, the characteristic elongated snout morphology of alioramins was likely maintained throughout their ontogeny (growth).

The same study indicates that these theropods likely did not utilize puncture-and-pull feeding like larger tyrannosaur genera such as Tyrannosaurus and Daspletosaurus.