Megalancosaurus was a small Prolacertiform from the late Triassic period. they were small, less than 30 cm in length and, like Chameleons they had pincer-like hands and tails that could grasp branches. Megalancosaurs had long, slender necks and pointed skulls. these reptile's small pointed teeth suggest that it ate insects. Strangely, they had a pointed hook at the end of their tails.