A few awesome thing about it is, even though it's from archeology you don't need to level the profession itself to uncover it. Instead this mount works via a quest you can pickup after learning Archeology in Dalaran.
It will require you go to highmountain to a tauren NPC to hand in the quest. Upon handing in you will get another quest. Surprisingly the reward is actually the mount.
You have to collect 600 Eche'ro Bone Fragments to complete the quest, you can get the bones from completing the dig sites in Highmountain.
It's around 12 - 20 bones per site so It's not that bad.
They also seem to have updated the digsites rotation. Instead of 3 per continent it seems that it's now 3 per zone. Might just be for the quest but I'm not certain.
Check the video below for a demonstration on how to do it. I hope the guide helps you lot out! Goodluck!