How heavy was the Pterodactyl?

Pterodactyls, specifically the genus Pterodactylus, varied in weight depending on the species and size, but they typically ranged from about 10 to 33 pounds (4.5 to 15 kilograms). Some larger pterosaur species could weigh significantly more, but Pterodactylus itself was relatively lightweight, adapted for flight with a wingspan of about 3 to 10 feet (1 to 3 meters). Their lightweight structure, with hollow bones, helped them soar effectively during the Late Jurassic period.