To tame a Spino I placed down 3 large bear traps, it easily got stuck and by the time it got out it was torpor running. I easily knocked it out but I must warn you bring A LOT if narcotics mine was only level 4 and it took about 90 narcotics to keep asleep. Didn't take too much meat about 6 percent for every one piece of raw meat. If you are looking to find one on the island map on ARK Survival Evolved there were two spinos near in the southern uplands where there are quite a lot of raptors. Bring bear traps, a bunch of narcotics, and some raw meat if you are looking to tame a Spinosaurus. :)
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.