1) Extinct flyer 2) Extinct flying reptile 3) Flier of long ago 4) Flying reptile 5) French word used in English 6) Prehistoric menace 7) Pterosaur Found on https://www.crosswordclues.com/clue/pterodactyl
informal term for a subgroup of flying reptiles (Pterosauria) known from the Late Jurassic through Late Cretaceous periods (145 million to 65 million ... [1 related articles] Found on http://www.britannica.com/eb/a-z/p/128
Pter`o·dac'tyl noun [ Greek ... a wing + ... finger, toe: confer French ptérodactyle .] (Paleon.) An extinct flying reptile; one of the Pterosauria. See Illustration in Appendix. Found on http://www.encyclo.co.uk/webster/P/188
The name of a series of tailless aeroplanes designed by Captain G.T.R. Hill and built by Westland Aircraft Ltd. Captain Hill was aided in the design work by Major J.W. Dunne, the famous pioneer of this type of aeroplane.
Found on https://www.encyclo.co.uk/local/20784
any of a number of genera of flying reptiles of the extinct order Pterosauria, from the Jurassic and Cretaceous periods, having a highly reduced tail and teeth and a birdlike beak. Found on https://www.infoplease.com/dictionary/pterodactyl