Zer0x

01 May 2014, 20:20

That is a really good question. I'm not a palaontologist, but I would say dragons are not just suborder, they are a whole reptile-like class of the tetrapodas.
They have scales like reptiles, but they are endotherm like mammals or birds and some breeds have more than 4 extremities and spit substances like insects. If they can fly or not is from a biological view point not really important, every class is technically able to fly.
Someone should make a pedigree chart about all dragon breeds based on biological facts.

I would say, every animal that looks like a reptile, but has abilities from different classes is a dragon.