The Pterodactyl was a type of flying reptile. It was common during the Mesozoic era.
Jack Sparrow and Fitzwilliam P. Dalton III encountered the pterodactylus during their adventures with the Timekeeper. Fitzwilliam mentioned that they were thought to be a myth though some people claimed to have found their bones. Though mostly hostile, Jack and Fitzwilliam did briefly befriend one pterodactyl. Jack named it Drag. The flocks assisted them in escaping from a pair of sabertooth tigers.