Upper Jurassic Period
Harpactognathus (grasping jaws)
Jaw fragment, rostrum and dentry
tip, of a large Scaphognathine like
pterosaur from the Morrison Formation, now in the North American Museum of
Ancient Life at Lehi, Utah.
Holotype: NAMAL 101 anterior partial rostrum
Carpenter, K., Unwin,
D., Cloward, K., Miles, C., and Miles, C., 2003, A new scaphognathine pterosaur
from the Upper Jurassic Morrison Formation of Wyoming, USA: In: Evolution and
Palaeobiology of Pterosaurs, edited by Buffetaut, E., and Mazin, J.-M.,
Geological Society Special Publication, n. 217, p. 45-54.