- A short artery arising from the aorta
and giving rise to a subclavian
artery (teminating in a forelimb) and a carotid
artery (terminating in the head), in many birds and mammals.
- The innominate bone – each half of the pelvis
(hip bone), when the pubis, ilium,
and ischium are fused together into
a single bone, as in adult mammals, reptiles, and birds.