What is a Pterodactyl's niche predator and prey?

I assume you are talking about Pterodactylus antiquus specifically. It should be noted that the common term 'pterodactyl' is very vague, and often either means Pterodactylus , Pteranodon or just the whole clade pterosauria, which has over 300 species. read more

And finally, Scaphognathus crassirostris, another pterosaur, is also a potential predator. It had a roughly 90 cm wingspan, so similar in size to Pterodactylus, but it had a robust skull with large fang-like teeth, ideal for murdering innocent small pterosaurs. read more

A prey could be any animal that is being preyed upon by the predator.usually, prey is the submissive organism of the predator-prey interaction. Most of the time prey is herbivorous, but omnivorous prey species are also there in the ecosystem. read more