Istiodactylus
Istiodactylus is a genus of pterosaur that lived during the Early Cretaceous period, about 120 million years ago. It had very large forelimbs, with a wing-membrane distended by a long wing-finger, but the hindlimbs were very short. Its distinctive teeth indicate that it was a scavenger that may have used its teeth to sever morsels from large carcasses.