I am completely re-working all my My Little Pony fan-characters and fan-world. I love making-up new types of pony, and I love defining magic, so there is a lot of both of that in this work. I'm calling it "My Little Pony: Divine Ages." They exist on the planet Ungulatia, now.

The history of Ungulatia is separated into four ages, defined by the ruling Paragons and Cores. Every type of pony, and the monsterish void ponies who lack cutie marks, is shown here. They are divided by the first age they appeared in.

First Age-
Tri-Magus Pony
Ghoul (Void Pony)

Tri-Magus Ponies and Ghouls go extinct at the end of the First Age.

Second Age-
Earth Pony
Unicorn
Alicorn* (Alicorns can have all sorts of features. They are defined by their hybrid nature, extreme power, and possessing both a magic horn and wings.)
Pegasus
Mole Pony
Sea Pony

Changeling (Void Pony)
Umbrum (Void Pony)

Third Age-
Bat Pony
Hippogriff
Crossroads Pony

Fourth Age-

Tri-Magus Ponies and Ghouls re-appear at the beginning of the Fourth Age.

Flutter Pony (Healed Changeling)
Kirin (Healed Ghoul)
Leo Pony (Healed Umbrum)

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I was inspired by JayRock5858 (on Twitter) to give my ponies toes and lobed wings, as in their "Tiny Sapient Ungulates" AU which I adore.