Ctenochasma, Filter-Feeder

With it's long, slender jaw and many slender teeth, this pterosaur appears to be a sifter-feeder, much as some ducks are today, gulping large volumes in algal waters and occassionly small invertebrates and then draining the water away. The jaws are very narrow, but the teeth project about evenly sideways as down and would have interlocked to form a "basket", much as is seen in the Venus fly trap's smile. The long legs and arms were likely useful in wading, so the wings when extended in this position are only so long because of the need to allow the animal a useful quadrupedal gait when on the ground (not shown).