>>96249315
except the ones that do
there are plenty of dragon species on the warhammer world, including ones that don't have your 'typical' 2 wings and 4 legs configuration
if you don't find them in the old world then maybe it's because they don't live in the old world, vampires get their dragon corpses from the graveyard of dragons in the darklands, where all sorts of dragons from all over the world go to die

since wyverns and dragons in warhammer are distantly related, there must have been a moment in time when they shared traits, so unless you want to propose a wyvern species with 'dragon legs', one must consider a dragon species with 'wyvern legs'