Don't bother learning its saddle engram on mobile if your not ready to go in the dungeons. This is because you need to go in a dungeon, look for a daodon to kill thats a high level, take its chip or whatever its called. Finish the dungeon, and revive it at a revival platform or one of the obelisk's to tame it. Same thing for the megatherium. If you just want a daeo in general in ark mobile don't get it.

More Daeodon Taming & KO Tips