Hmmmm... wait. I think this stuff about the draconians kinda conflicts with what I've already got, seeing as Fáfnir's mother isn't really a part of any "tribe", and Fáfnir looks completely different from Arky Ark and the funky bunch despite being more or less the same thing (i.e. the children of a human and a dragon).

Maybe we can sort this out with some explanation along the lines of "long ago the draconians became a distinct species from dragonborn when the draconians started mating more with dragons than humans, thus taking on more reptilian characteristics"? 

Either way, we're gonna need to reconcile some of the differences in our sheetsz