Monsters' Evolution Personal Theory

Here is the first image of my cladograms that I'll show you. These cladograms show my ipotetic monsters' evolution, this is the first of the clade "Arcosauromorpha", that includes Wyverns (Bird Wyverns, Brute, Flying Wyverns) and some Elder Dragons (Chamaleos, Lunastra, Kushala, Lao Shan and Alatreon). This is only a preview ;)