Pterorhynchus ("wing snout") is an extinct genus of pterosaur from the mid-Jurassic aged Yanliao Biota[1] of Inner Mongolia, China.
The genus name is derived from Greek pteron, "wing" and rhynchos, "snout", in reference to the tall crest on the head.
These included the wing membrane, hair-like structures, a long version of the vane found at the end of "rhamphorhynchoid" tails, and a head crest with both a low bony base and a large keratin extension; the latter feature is unusual in "rhamphorhynchoids" (i.e., basal pterosaurs), the fossils of which do not often show head crests.
The crest covered the posterior two thirds of the head, showed the presence of minute oval scales and was reinforced by a dozen ridges running parallel to the rounded trailing edge.
In his 2006 book The Pterosaurs: From Deep Time, David Unwin regarded it as a Cretaceous genus,[5] but this was based on old information.