pelagosaur noun1 •Any of the extinct crocodile-like animals of genus †Pelagosaurus which lived during the Jurassic period.SINCE, aflap o'er some dim Jurassic prairie, Pterodactyl seized on pelagosaur; In heraldry-book and bestiary Have been limned the beasts of the days of yore. — 1915 formspelagosaurs
