It has a sharp denticle on the apex. Similar scales can also be found under the head of the denticle herring. The upper palatal lip often has a small tuberculate denticle. Its first tarsomere does not have an apical denticle ventrally. The extent of denticle coverage and number of oral papillae can vary among individuals. The sinuous columella terminates in a point or denticle at its base. A denticle is any small tooth-like or bristle-like structure. Additionally, the teeth of "Stenonychosaurus" bore large serrations, each of which is called a denticle. Each denticle has three horizontal ridges that lead to teeth on the posterior margin. Small, overlapping dermal denticles cover the body and fins; each denticle has three marginal teeth. Each denticle has an arrowhead-shaped crown with three posterior points, mounted on a short stalk.