relationship loss: part_of zonal element (AAO:0000936)[AAO]

check developmental relationships.

The coracoid is a triangular shaped-bone that usually has an anteriorly directed long process that may joins its counterpart in some fish groups. It may be perforated by the coracoid foramen or it may be notched dorsally and forms the scapulo-coracoid foramen together with a similar notch of the ventral margin of the scapula.[TAO]

Paired cartilaginous structures or endochondral bones located on the posterolateral portions of the zonal area of the pectoral girdle.[AAO], Endochondral bone that articulates dorsally with the scapula and with the mesocoracoid when the latter is present, posteriorly with the lower two or three proximal radials and antero-ventrally with the cleithrum. The coracoid develops from the scapulo-coracoid cartilage. The coracoid is paired.[TAO]

uberon

pars sternalis scapulae, coracoideum, clavicula, clavicula vera, clavicula posterior, coracoidien, metacoracoid

UBERON:0004743

In Theria, coracoid bones non-existent or fused with the shoulder blades to form coracoid processes[WP]. Procoracoid+coracoid are homologuous with coracoid of teleostomi. The coracoid is a triangular shaped-bone that usually has an anteriorly directed long process that may joins its counterpart in some fish groups. It may be perforated by the coracoid foramen or it may be notched dorsally and forms the scapulo-coracoid foramen together with a similar notch of the ventral margin of the scapula

see discussion in Kardong - suggests using procoracoid (anterior coracoid) for the element in birds, reptiles, amphibians and fish, and reserving coracoid for the new synapsid/therian structure.

• supracoracoideus muscle

• acrocoracoid process
• coracoid plate
• coracoid foramen
• sternal head of coracoid
• glenoid head of coracoid
• margo posterior
• margo fenestralis
• ventral keel of coracoid