the lower end of the humerus. The radius is subcylindrical in shape with expanded upper and lower ends. The articulation surfaces of this bone with those of the ulna in AMNH FARB 30729 match perfectly, indicating that they represent the same individual. Both bottom and top surfaces in the radius are triangular and shape but the former is more flattened. The lower end is more expanded than the upper one and is also triangular in cross-section. Additionally, the articular lower surface of the radius is triangular and has striations. The ulna is shortened compared to other hadrosauroids. It is expanded at its upper and lower ends and the dorsal surface of the upper third shows a shallow depression that likely served as the attachment site for the upper end of the radius. The inner surface is very concave in shape. The middle and lower regions of the shaft change from wider to more expanded near the lower end of the ulna. The latter is nearly equal in thickness as the upper end. The lower fifth of the ulna has a flattened articular surface for the radius that faces from the inner to the top facets and shows elongated striations. Though very fragmented, the manus is represented by the left metacarpal IV with two right phalanges. The metacarpal is very short—more so than what is known in other hadrosauroids—and has a gently tilted shape. The upper end is more broad than the lower one and its articular surface is rather round. Phalanx II-1 is fairly elongated and has concave articular surfaces. However, phalanx III-1 is much shorter than the previous elements, having a semi-square shape and being wider than long. Its articular surfaces are more convex. The ilium is elongated and shallow in shape with its preacetabular process (anterior expansion of the iliac blade) also being long and deflected towards the bottom. The upper region of this process is deep. The shape of the top border of the ilium has a degree of variability among specimens. The supraacetabular process (a bony projection at the top border of the ilium) has an asymmetrical, v-shaped appearance in profile and its lateral projection is tilted to the bottom. This process also develops near the upper region of the postacetabular process (posterior expansion of the iliac blade). The pubic peduncle—a robust process in front of the acetabulum—is triangular in shape and expanded from the inner