end as seen in many other iguanodontians. Limbs and limb girdles The pectoral area is represented by both scapulae and coracoids from several specimens as well. In general, the coracoid has a oval-shaped form with a prominent coracoid foramen through which the supracoracoid nerve passes and the glenoid is D-shaped. The bottom articulation is shortened and triangular, as well as directed to the bottom area rather than hooked from the rear to the bottom in a lateral as in many other hadrosauroids and not hadrosaurids. The scapula is very straight in a top view with its inner surface being flattened throughout most of the length. The scapular blade is not particularly elongated and is somewhat rounded at its end which seems to be a common trait in hadrosauroids except for Bactrosaurus. The proximal constriction, the area of the scapula lying between the proximal region and the distal blade, is very narrow; its breadth is about half the width of the proximal region. The putative acromion process is slightly tilted forwards. The deltoid ridge—a ridge-like structure on the humerus where the deltoid muscle is attached—is well developed and extends from the acromion process to the bottom edge of the scapular blade. The coracoid facet is concave and subrectangular shape. The glenoid is concave and more elongated than its width. The humerus is a relatively stocky and robust bone. Its main articular head is expanded from the inner side to the lateral one and proximally offset relative to its proximolateral corner. The deltopectoral crest—where the deltoid muscle was attached to the upper front of the humerus—is developed to the lower side from the upper half of the humerus, and its bottom extension has a total width diameter of the humeral shaft ratio of 1.67. The lateral border of the deltopectoral crest is very thick towards the bottom border. However, as a whole, this crest is relatively shortened in length. In cross-section, the humeral shaft is elliptical in shape and gently flattened to the lateral surface. A large tuberosity can be observed on the posterior surface of the humerus—about 1/3 the distance from the upper end. The lower end of the humerus is expanded to the lateral side forming the ulnar and radial condyles. The ulnar condyle is more wider and expanded than the radial one and these two condyles are separated by a shallow depression on the anterior and posterior surfaces of