part of start stage end stage postcranial axial skeleton supraneural Supraneurals independent, median, elongate, rod-like cartilages or bones in the dorsal skeletogenous septum between the cranium and the dorsal fin. In actinopterygians, supraneurals develop from cartilages that are independent of the neural spine (Arratia et al., 2001). TAO:0000442 zebrafish_anatomy ZFA:0000442 sn endochondral bone larval:days 7-13 adult