T. Michael Keesey wrote:
Not so--_Pterosaurus_ is a hymenopteran genus. Thus, _Ornithodira_ sensu Kischlat is roughly synonymous with _Bilateria_, _Pterosauromorpha_ sensu Kischlat is roughly synonymous with _Ecdysozoa_ or _Protostomia_, and _Dinosauromorpha_ sensu Kischlat is roughly synonymous with _Deuterostomia_. :)
AFAIK, there is no genus named _Pterosaurus_.
Tim