Hello there! I just made myself a Google Doc list of all of Lioden’s breed-only markings. I made this list for myself and decided it might help others out as well.
If you are checking to see if a marking is breed-only (RMA included) then I strongly suggest clicking that link and using the command (CMD + F) to search for your marking!

Please read the bottom of the Doc to see my Notes (credits & when to dm me about new BO markings)