 These autapomorphic traits are unique to "Qianxisaurus" among all known eosauropterygians.Other unusual traits include a snout longer than the rest of skull, an irregular shape of postorbital bone with a truncated projection of the top surface and a forked projection of the back surface, short and stout retroarticular process that is not concave but truncated in its back portion, a relatively long body with 28 back vertebrae, the presence of four sacral vertebrae, ribs which are not pachyostotic, and a coracoid with a narrow, column-shaped side portion and a widened, foot-shaped mid portion.