Peteinosaurus was one of the earliest Pterosaurs, dating to the Mid Triassic Period, around 225-200 mya. Though not the earliest Pterosaur known, with Early Triassic relatives, it was one of the very earliest Pterosaurs to become widely successful, clearly establishing reptiles as 'the new masters of the air. It was a comparatively small Pterosaur of the characteristic long-tailed Rhamphorhynchids, at around 40-60 centimetres in wingspan. Its diet would have consisted largely of insects, such as Dragonflies, due to its tiny but very sharp needle-like teeth.
The Land Before Time
Seven baby Peteinosaurus and their mother appear in The Land Before Time, where one blue baby gives a berry to Littlefoot. Three baby Peteinosaurus appear in The Land Before Time IV: Journey Through the Mists.