I found mine in the southern river area near middle zone of the map. Just trapped it in a stone box. I used a couple ramps to let it jump in the box and then tranquilized it. A very easy tame, especially if you have a flying mount to lead the creature into the box. I now get to look forward to actually getting some prime meat! I did a 2 square x 3 square box. Put the ramps on the 3 square side. I’m stacked with raw meat, but it’s going to be a long wait.