Races of the Source vs the First and those unique to each

[Nalien]

Source only:

Namazu

As I recall, there was a carving of a Namazu in one of the Rak'tika quests, implying they were at least around during the days of the Ronkan Empire. They were simply wiped out by the present.

interesting that the Fae Folk appear to be unique to the First

Likewise, it would seem Fae did exist on the Source at one point, given Bismarck is a Fae on the First, and a creature of mythology for the Vanu Vanu (who are also Source only, along with the Gnath), implying he at one point existed on the Source to inspire that mythology. The Sea of Clouds possibly being the result of something similar to what we saw him do in Tempest.

EDIT: Perhaps also worth noting, there doesn't seem to be a Sea of Clouds or Churning Mists on the First, Sohm Al is entirely absent despite being fairly inland from the Flood. Entirely possible they fell during the Flood of course, but to me that does raise questions regarding the idea that the Floating Continent existed since before the First Calamity, and was subsequently broken up by Calamities. The Norvrandt map has roads, bridges even, leading towards what would be Idyllshire, so it's not like that region wasn't explored in their history, and I think a floating mountain would draw attention, more so with there being no Dragons guarding it on the First. The only floating islands we do see on the First are "man" made (Vauthry raising Mt Gulg) and, interestingly enough, Pixie related with Lyhe Mheg, implying that Pixies do have a habit for making floating islands, perhaps lending some weight to the idea that Bismarck (also a Fae) created the Sea of Clouds?

[Noitems]

perhaps lending some weight to the idea that Bismarck (also a Fae) created the Sea of Clouds?

Long, long ago, in a time when not a single cloud marred the blue vastness of the sky, a stark white calf was born to a pod of sea-dwelling whales. The pale-hued Bismarck endured endless cruelty from his grey-skinned siblings, until one day they suffered the "abomination" to live no more. It is said that the gods wept at his piteous fate, and when his tortured soul ascended to the heavens they returned the white whale to life. His rebirth blessed by divine grace, Bismarck swam through the air, the whale's breath begetting billowing clouds until the sky was filled with a sea of tranquil mist. Master and creator of this peaceful domain, he thence became known as the Lord of the Mists.Compassionate and gentle, Bismarck raised entire islands into the heavens to provide sanctuary for those who had suffered similar torments. The Vanu Vanu mark this occasion in their history as the moment when the Sea of Clouds became their home.

I mean we know Bismarck was the one who created the Sea of Clouds, so this does add more to the concept of our Bismarck being a Fae and how it ties itself back to the First.