Coelurosauravus

Coelurosauravus is a genus of basal diapsid reptiles. Known from several specimens found in Madagascar, Germany, and England, members of this genus possessed long, rod-like ossifications along the edge of the body. These bony rods were not extensions of the ribs but were instead newly developed bones derived from the skin of the animal, a feature which is unique to the genus and its close relatives. It is believed that during life, these structures were covered with skin, forming wing-like surfaces which Coelurosauravus could use for gliding.