To tame: build a small trap out of stone pillars or metal pillars. Size it to fit a Therizino. Once it is in, block in its only exit and knock it out. I found that using berries was way less stressful than narcotics at mid level, because the Therizino would slowly gain torpor for a long amount of time instead of all at once for a few seconds. Using a Parasaur to collect the berries was very efficient. I had 400 extra narco berries. In the future I will use the same process for a higher level one.
If this dino spawns near your base and you are low and mobile player then just do one thing. Put your all stuff in your base and go near the dino then run in opposite side of your base and lead him to far away from your home before he destroy all you have even your pets. just don't uninstall the game bcoz of this😂
Use stone building 4 foundations with door frames all around perimeter and 2 walls high. On outside place stairs on one side- this will be the side it chases u up. Once it’s in the trap knock it out with tranq arrows.
Recommend have berry gatherer with u- need A LOT of narco.