Answer: pterosaur

AnswerCrossword Clue
PTEROSAURExtinct winged "lizard"
PTEROSAURLate-Triassic flier
pterosaurAn extinct warm-blooded flying reptile of the Jurassic and Cretaceous periods, with membranous wings supported by a greatly lengthened fourth finger, and probably covered with fur
pterosaura pterodactyl also PTEROSAURIAN