Pterosaurs are without a doubt of the most successful groups of animals ever to inherit the earth! Gracing the prehistoric skies for over 160 million years! One of the most bizarre of the pterosaur bunch was Caiuajara Dobruskii. With a head crest like a sail and a body that overall might have weighed less than its head. Caiuajara is at the top of natures most creative creations. A flying reptile whose head was topped with a big bony crest shaped like the sail of a yacht swoop