Scapula of Edmontosaurus annectens
Earth History Research Center
Earth History Research Center

The scapula, a large bone that anchors the muscles of the shoulder and upper back, articulates with the coracoid and clavicle as well as with the humerus. The scapula shown here in Upper Cretaceous sediments, is 1 meter long (39 inches), including the attached coracoid. The scapula in your back is about 6 inches in length.