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

Eric Walker added Dinosauromorpha and Pterosauromorpha to Ornithodira, and added Ornithodira to Avemetatarsalia