David Marjanovic wrote:
This is not regulated. In this case, I applied logic. If pterosaurs are not archosaurs, then there are no archosaurs that are closer to *Pterosauria* than to *Dinosauria*, which means that *Pterosauromorpha* self-destructs. And *Pterosauria* is defined as a part of *Pterosauromorpha*; if the latter doesn't exist, the former can't exist either.
Oh, now it all makes sense!
"FASTEN YOUR SEATBELTS!... IT'S GONNA BE A BUMPY RIDE!"