Now how to tame it is pretty easy, my method was i decided to do some missions first to get 2 soothing balms and after i did that i tamed a spino level 28 since he’s slower then the Theriznosaurus i put him ko by using toxic arrows and used soothing balm on him and had to give him some regular meat now that that was done i took my spino with me and searched for the Theriznosaurus something like that i put the spino on passive and told him to not move then what i did i shot the Theriznosaurus with my toxic arrow he started chasing me and that’s where i ran to my spino and he instantly got distracted by him and started attacking him so i had the time to continuously shoot him and evuantally K.O him used soothing balm and berries and got him.