Winged, flying prehistoric reptiles that were closely related to dinosaurs. Pterosaur means "winged lizard". Quadraped Any creature that walks on four legs.

Any of a group of extinct flying reptiles with large bat-like wings, including pterodactyls and rhamphorhynchoids. Their mode of life probably involved swooping over the sea to catch fish. They became extinct at the same time as the dinosaurs.

Winged lizards that ruled the skies at the time of the dinosaurs; now-extinct reptiles with the ability to fly, including pterodactyls; some pterosaurs were as small as a sparrow while others were as large as an airplane.