This dinosoar is a relativey easy game for even early level players since it is a passive tame, won't attack you, and only needs berries. So to conclude, mejoberries are good to have. That is pretty much all you need. Also, once tamed out of next to other dinosoars in you have any because when you let it it will gov a small XP boost to nearby dinosoars.
Ok so if you are on mobile, I figured out how to tame them with no violence. I put amarberries in my hotbar guessing that was like have them "out". Started following g this little guy around, and behold, his tame meter started rising!