Native to the Near Eastern island of Thavnair, adamantoises were introduced to Eorzea towards the end of the Sixth Astral Era. Dodo eggs were commonly imported for feast days, and it was to one of these shipments that a batch of adamantoise eggs was mistakenly added. A number of the creatures hatched and fled into the wild, where they established themselves in the local ecosystems. In Gridania, the question of the adamantoise's place in the natural order is yet debated with some fervor.