After a certain age people stop asking you what your favorite dinosaur is, and I think that’s sad.
My current one’s the Anchiornis, because it’s in the same clade as birds so it’s in their family tree, and it really looks like a prototype of a bird. It had 4 wings for example, but it already looked very birb-y:
(Figured I’d just turn an earlier comment into an actual post because why not)
Why pterodactyls aren’t consider dinosaurs then?
Same reason bats aren’t considered birds.
Honestly I find it a bit weird how you’re clearly very insistent on being right but you apparently refuse to actually read about any of this instead of assuming that what you know is the truth. Wikipedia is right there you know
Because they don’t descend from those ancestors. Instead they evolved from some other, much earlier, reptile ancestor. They are about as dinosaurs as crocodiles or snakes are dinosaurs.