Run.

If you do this in an official server. And use stone, you are one crazy ark player.

Wiki says: To tame it, you need brute force like a rock straight into its head.
Billy (tribe of billy) - lvl 2: Will my Journeyman slingshot work? I just spawned here and i was told it eats rocks! I have some in my pocket! I WILL TAME IT

Tamed with stone once ... Still taming the same elemental

It's not just a boulder... It's a rock!!! The pioneers used to ride these babys everywhere