I was reading through the bestiary earlier and, coincidentally, stumbled upon the Elemental genus.

Now I can't remember what I've read about the elemental sprites in FATEs and guildleves, but are sprites elementals? Because they sure don't look anything like the actual elementals that were called elementals rather than sprites in v1, http://ffxiv.gamerescape.com/wiki/im..._Elemental.png

I was also under the impression that these elementals are the ones connected to the Twelveswood and the hearers and seedseers, but only sprites are even mentioned in the genus category page, not elementals, still it says
They are revered by the citizenry of Gridania and it is by their grace that the city-state continues to exist.
Did the elementals just change form to sprites after the calamity?