the describing authors indicated some distinguishing traits. five of these are autapomorphies, unique derived characters. the middle and rear dorsal (back) vertebrae have an accessory ridge or "lamina", forked at the top, located between the normal ridge connecting the front articular processes, and the neural channel. the rear back vertebrae lack a ridge connecting the rear articular processes because the ridge on the rear of the neural process runs all the way down to the neural channel. the middle tail vertebrae have a vertebral body of which the rear face is widened to above and sideways, resulting in a heart-shape. the upper inner side of the front edge of the shoulder blade, the part touching the coracoid, features a curved crest running parallel to a groove. each of the paired breast bone plates is exceptionally small, equalling just 42% of the length of the humerus.