I tamed one when I was lvl ... 6-9... yeah I tamed one that early by nolawin it .. I hit it with a club but it broke free and attacked me.. I attacked back and soon it ran away from its high torpor and it was night time so I went back to my base and slept till the next day... I went back looking for it finding it in the water so I tried to get it to aggro but it was still to far so I hit it with my bow and it came over.. I ran back and bolad it then beat it with a club and and it knocked out and I fed it with fish meat.. another one was near by so I kept an eye on it soon my baryonyx tamed and I went back to base.. 2 days after I tamed it we attacked some megapharanhas but he died and my parasaur died to from the megapharanhas.