1. Its ankylosaurian affinities would be proven by a high acromion process. 2. The acromion of the scapula rotates on the acromial end of the clavicle. 3. They cushion and protect the rotator cuff from the bony arch of the acromion . 4. Also, the scapulae of the examined specimens were identified to lack acromion processes. 5. The greater / lesser tubercule are located from the top of the acromion laterally and inferiorly. 6. When the rotator cuff tendon becomes inflamed and thickened, it may get trapped under the acromion . 7. On plain film the inferior aspect of the clavicle will be above the superior aspect of the acromion . 8. It is caused by a hyper abduction of the arm that forces the humeral head against the acromion . 9. The scapula had a large rectangular acromion , with a sharp upper corner, on the lower front edge. 10. Likewise, the oddly folded acromion is pointing ventrally and posteriorly, and not anteriorly as in other cetaceans.
Mobile