Board Thread:Lore Discussion/@comment-153.107.33.152-20140620001033/@comment-108.28.151.191-20141129212104

Dragons were almost certainly likely to have existed in Atmora. Dragons were able to have presence in multiple continents, namely Akavir.

Also, the fact that the Dragon Cult was brought into Skyrim, along with almost any Nordic ruin having some reference to Dragons (including Saarthal, the oldest one), might also back up the thought.

There is even a possibility (theory) that Dragons played a role in the demise of Atmora (could they have had a psrt in the freezing?).