Harpactognathus

Harpactognathus is a genus of pterosaur, a group of extinct flying reptiles, that lived during the Kimmeridgian stage of the Late Jurassic period in what is now Wyoming, United States. Harpactognathus is confidently known from a single, incomplete rostrum found in 1996 at the Bone Cabin Quarry, though an incomplete mandible and humerus from the quarry have tentatively been referred to the genus. The rostrum was described by paleontologist Kenneth Carpenter and colleagues in 2003, who named the type and only known species, H. gentryii, after Joe Gentry, a volunteer for the Western Paleontological Laboratories in Lehi, Utah.