a large tailless pterosaur, of the genus Pteranodon, of the late Cretaceous period, having a long bony crest, a toothless beak, and a wingspan of up to 23 feet
pteranodon in American English
(təˈrænəˌdɑn)
noun
any of a genus (Pteranodon) of large, toothless, Late Cretaceous pterosaurs having a long, bony crest at theback of the head