Possible Clues:

• Extinct flying reptile
• Winged “lizard” of the late Triassic and Cretaceous periods
• Flying fossil
• A right posture perhaps, but it couldn't procure its posterity
• Ground or pasture for old beast
• Rue a sport being ruined by old thing flapping about
• Fossil flying reptile
• Part the atmosphere, nearly getting love in ancient flyer
• Extinct reptile shown in a poster flying over ancient city
• Use raptor to tear apart very old flier