Wann Langston Jr.
Director of Vertebrate Paleontology at the Texas Memorial Museum from 1969 to 1986.
Langston W., 1981, Pterosaurs: Scientific American, vol 244. no.2, p. 93-102.
Kellner A. W. A. and Langston W. Jr., 1994, The cranial anatomy of an azhdarchid pterosaur from the Late Cretaceous of Texas. J. Vert. Paleont. 14, 32A.
Kellner A. W. A. and Langston, W. Jr., 1996, Cranial remains of Quetzalcoatlus (Pterosauria, Azhdarchidae) from late Cretaceous sediments of Big Bend National Park, Texas, Journal of Vertebrate Paleontology 16, 222–231.