Nyctosaurus were small Pterosaurs that lived in the Cretaceous Period. Their wingspan was around 1-2 metres. They probably fed on fish, like many (but not nearly all) Pterosaurs did.
Walking With Dinosaurs[]
Nyctosaurus never appeared in the main series.
Prehistoric Park[]
Some Nyctosaurus appeared in the first and last episodes of Prehistoric Park (T-Rex returns and Supercroc, respectively). They had a minor role in both episodes. One Nyctosaurus was eaten by a Deinosuchus that lunged up out of the sea in Supercroc. A pair of Nyctosaurus also appeared in the opening of the series.