Quote Originally Posted by Tsiron View Post
I've been wondering for a while what exactly the deal with all the sapient species in FFXIV is, actually. Given that they (most of them...) exist on the First as well means they predate the Sundering, so does that mean they existed alongside Amaurot? Came after, and were the "new life" that's constantly alluded to after Zodiark's summoning?
It hasn't been clarified, but it's been at least implied that the races of man we're familiar with sprang into existence after Zodiark stopped the Final Days.

Granted we only have a single window into pre-Sundering existence (and it's a heavily biased one at that), but there's no conclusive evidence or even known account of world population prior to the Final Days / Sundering.

In response to OP's question, there is no known link between Hrothgar and coeruls, just as there is no known link between Miqo'te and cats (or coeruls for that matter), Viera and rabbits, or Lalafell and popotoes.