Although the world of Lauren Faust seems to include a multitude of mythical creatures, only several of the prominently sentient ones seem fixed to one type; that is, the griffins and unicorns. I believe it is slightly more well known that the English unicorn we all know and love (?) is just one type under that name, but the griffin is equally varied. Yes, I know that there are cyno griffins...but those aren't really one of the distinct types of griffins in world mythology, with hypogriffins being another thing entirely. In fact, some griffins in folklore do not have beaks or wings at all! While you may think that the eagle-headed griffin is the standard, in truth that is not entirely the case- from the English Isles to the hypothetical origin of the Griffin, the far East, time has produced at least four distinct types of griffin. Three of the four have a likely chance to be incorporated into Lauren's world, which are such: The griffin already present in canon, although like the other two has it's own sub-types; an earless griffin called the Opinicus, whom is exactly the same save for it's obvious lack of ears. The Axex is clearly more distinct, but still retains the generic features to be a sub-species: It has a body more slender, and both the head and wings of a hawk instead of an eagle. The Axex would do well to be in the land of zebras, given it's origin in Egyptian mythology. With unicorns already being one of three horse types in My Little Pony, it would be appropriate for the varieties to be emphasized on a lesser scale than griffins.