It was surprisingly easy to tame a level three one, as it spawned next to my home. It took about six darts from the crossbow for me to knock this one down. To tame, I gave it about 4 prime raw fish meat and 10-35 pieces of regular raw fish meat. However, it took SOOOO LONGGGGG TO TAME!!!! Anyways.
Hey, ok so the center, coordinates 08.1 / 63.4 spinos will spawn there, if is not high enough just kill it, leave the area and come back after 3 mins. Normally works, I found a 150 and I'm taming it rn
stand on a high cliff and shoot it or keep shootong it and running away on a raptor until it's knocked out. it gets distracted very easly by fish, sharks and manta's (even while chasing you) so you may want to shoot it while it's distracted.