The Family draconus has four major Genus: Greater dragons, lesser dragons (normally just called "dragons"), wyverns, and eywen. Each Genus then will have different species, differing strongly in size, colour, habitat, prey, etc. Dragons and wyverns were naturally indigenous to Elara. Greater dragons were magical mutations of dragons done by the joKara, during their centuries long war with the Valeri mages. After the joKara disappeared, the greater dragons remained.