Have I missed completing the bestiary?

[KittHaven]

I didn't encounter the 011 Phorusracos while playing the game and I'm going around trying to get the 4 beasts I missed now that I've beat the final boss, but I just read that you cannot find them after the overworld encounters change. Is that true? If so - darn... :/

The game was fun but I don't feel like playing it again just to complete the bestiary for the achievement lol

[SC_Nikki]

If you play just to the point where you can encounter Phorusracos, you can complete the bestiary without having to finish the game again.

They can actually be found to the far west of Fynn right at the beginning of the game, though you probably won't be able to kill them right away (unless you level up your magic for a bit).

[Captain Nobody]

Yup. The encounters change after you get the Ultima Tome. So for those reading this discussion, hunt down every monster you can before you unlock the door to the Mysidian Tower!