The interclavicle was a large plate with a smooth upper surface and a bottom surface that has a prominent central groove; it also bears a small, pointed projection at its back end.
The interclavicle was a large plate with a smooth upper surface. The interclavicle was a large plate with a bottom surface. This large plate with a smooth upper surface and a bottom surface has a prominent central groove. It also bears a small, pointed projection at its back end.