part of overlaps develops from start stage end stage epihyal Endochondral bone that begins ossifying on the anterior surface of the posterior end of the ceratohyal cartilage near the site of articulation with the interhyal (5.8 mm). It joins the ceratohyal in a pad of persisting cartilage. ZFA:0000627 posterior ceratohyal TAO:0000627 zebrafish_anatomy caudal ceratohyal ceratohyal cartilage ventral hyoid arch endochondral bone epihyal-ceratohyal joint epihyal-branchiostegal ray joint unknown adult