atheists, how do you know that pterodactyls really arnt the dragons of old?

How do you know that dragons and stuff really just arnt pterodactyls? Think about it, who told you it was a pterodactyl? And were you alive “millions” of years ago?
So there is just as much evidence of pterodactyls being the pagan dragons of old then there are of them just being a type of dinosaur.
right?
how [...]

Did dragons ever exist?

if you got dinosaurs and other animals why not dragons they had flying dinosaurs pterodactyl and stuff
if it didnt have the magic and fire breathing couldnt a dragon possibly be a very very big pterodactyl it looks somewhat similar to a dinosaur and it flies, and dragons were described as flying dinosaurs
if modern birds [...]