The Pterodactyls are minor villains in the Doctor Who episode "Dinosaurs on a Spaceship".
The Pterodactyls were among the dinosaurs placed aboard the Silurian Ark to be transported on a new planet. They settled in the engine room, which looks like a large beach.
When the Doctor, Rory Williams and his father Brian teleport themselves in the engine room, the Pterodactyls see them and become hostile. They attack them and try to devour them, but they manage to flee outside of the room.