Originally Posted by
Con_Carne
I keep what I say, Omega is from beyond. In his raids he created simulacrums from other existences (enemies and places from V, VI, and I, and the chocobo design for Alpha), which means he visited those worlds prior reaching Hydaelyn. Shinryu is more complicated because we must say there are 2. The Primal is from XIV only, and the interdimensional would be a different entity (and perhaps one of the origins behind the Primal, since Primal "Shinryu" was named by the Domans after another similar creature. Similar to what happened with non-chicken Enkidu, the Primal was based in the interdimensional one. Chickens not included).
What a movie I just explained. xD