I just picked one up...he is a little rough from his previous stop so no pics atm- In regards to your evolution theory i see exactly what you say... I think Discus are not on the 1st branch- but you can add Heroina to that too...as far as the angel branch 100 percent - festivum then leopaldi scarle then altumIt has always been my opinion (and a damn good one , I might add ) Parrots, Chocolates, Uaru, Severum and Discus most likely in that order on the evolutionary tree shared a common ancestor. Festivum and angelfish also probably evolved off the severum branch of that tree as well.
Every time I bring up the subject of cichlid evolution I hear crickets....lol. It just can't compete with stock my new ?????? threads.