Its the most aggressive herbivore, so be careful ! It's a classic knock out and it eats berries or megalosaurus kibble which I really recommend because the tame takes a veeery long time. It also loses torpor quite fast so you're gonna need a lot of narcotics. But once it's tames, you got a real beast: it can mess up against the rex and is a farming machine. Leftclick for wood and thatch, rightcklick for fiber and "c" for berries. It's the first herbivore that harvests bodies: leftclick for meat and hide etc. And "c" for only hide. You can increase the amount of gathered ressources by leveling up, similar to the moschops.
How to kill a therezinosaur solo for low levels. First, set up a spike wall in a defense position. Second, attract the Dino to you by shooting an arrow at it. Then, continue this attack from a position in which the creature will hurt itself on the spikes trying to get to you. continue this for about 25 seconds and make sure you have a lot of arrows. Eventually, it will fall.
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😂
How I did this : I built a trap two walls high (these things are kinda tall) lead it into the trap ,put crops and bio toxin in its inventory,went to sleep in game woke to it at fifty percent taming rate when the other day it was 20 ,waited,feed it toxins,went to sleep again,now it’s 80 ,waited for it to tame cause I couldn’t go back to sleep for a while,it finally tamed,now I have a level 7 theri .(yes I know it’s low level,I’m low level okay-)