21. The last paratype is the shoulder end of a left coracoid , catalog number PIN 4499-13. 22. Specifically, the short head of the biceps originates from the coracoid process at the top of the scapula. 23. The shoulder consists of the scapula ( shoulder blade ), coracoid , and humerus ( upper arm ). 24. The epiphyses, carpal bones, coracoid process, medial border of the scapula, and acromion are still cartilaginous. 25. The coracoid and carpometacarpus of the new species are larger and very different qualitatively from those of the Atiu species. 26. A partial ornithurine coracoid bone found in this formation is identical to others found in the older Hell Creek Formation. 27. The tendon of the short head runs adjacent to the tendon of the coracobrachialis and likewise attaches to the coracoid process. 28. There is an obtuse angle between the scapula and coracoid , and the two bones fuse together to form a scapulocoracoid. 29. Though the only remains are a coracoid and a humerus, these bones clearly identify it as part of the genus. 30. It was named by Carpenter based upon a complete skull and lower jaws, neck vertebrae, and a right coracoid .
