More primals than elements?

[Ruanark]

Considering the similarities between XIV and XI when it comes to Primals and Avatars here's a list of the Avatars and groups they fall under:

8 Celestial Avatars
Shiva, Ifrit, Leviathan, Ramuh, Titan, Garuda, identical to XIV, but then there are 2 more elements
Odin, Alexander, so far Alexander hasn't been mentioned and Dark/Light aren't elements like they were in XI

5 Terrestial Avatars
Bahamut (Dragon, Nonelemental/Fire idr, The Wyrmking, Conqueror of the Skies), Carbuncle (Fox, Light, The Bringer of Rainbows, The Trickster), Fenrir (Wolf, Dark, The Great Beast, Guardian of the Moon), Diabolos (Bat, Dark, Lord of Dynamis, it's Diabolos and NOT Diablos), Phoenix (Bird, Fire/Light?, Fiery Bird of Rebirth)
So far we have Bahamut, Carbuncle (who is not a Primal... as far as we know) and Fenrir (who may/may not be a Primal), only missing 2 of the Terrestials in XIV

2 Temporal Avatars
Cait Sith (Light elemental?), Atomos (Dark elemental?)
Atomos is a voidsent in 14?

??? Avatar
Siren