pterosauryoudaoicibaDictYouDict[pterosaur 词源字典]
"A fossil flying reptile of the Jurassic and Cretaceous periods, with membranous wings supported by a greatly lengthened fourth finger", Mid 19th century: from modern Latin Pterosauria (plural), from Greek pteron 'wing' + sauros 'lizard'.[pterosaur etymology, pterosaur origin, 英语词源]