Eric Walker added Pterosaur - Wikipedia to Pterosaurs
Eric Walker added Pterosaur - Wikipedia and How the Largest Animals That Could Ever Fly Supported Giraffe-Like Necks - The New York Times to Pterosaurs, and added Pterosaurs to Pterosauromorpha
Eric Walker added Pterosaurs to Pterosauromorpha, and added Pterosauromorpha to Ornithodira