Where is the sail fossil in XY?

Question

You see I am doing a trade with my friend amaura for tyrant but amaura evolved to aurauos so can't do trade and I was wandering can you find another sail fossil somewhere such as terminus cave

Comments

you could breed another one

Answer 1

You get to choose between the Sail or Jaw Fossils once you rescue the scientist from Team Flare in Glittering Cave.

EDIT: You can only get one in the game, I misunderstood your question. You can still breed Aurorus to get an Amaura.

Source: Experience and Serebii.