If you are familiar with this blog, you can see I’ve bashed every single notion that pterosaurs were in decline.
As it turns out, I forgot a specific pterosaur fossil. As it turns out, a Nyctosaurid humerus from Mexico was found dating to roughly 70 million years ago.
This confirms my suspicions: nyctosaurs have existed until much latter, but were not preserved by the fossil reccord.
Therefore, there’s even more reasons to suspect that Maastrichtian pterosaur diversity was much higher than we give it credit for.