A good way to get it unconscious without a flying dinosaur is by making 10 stone pillars, 10 wooden ladders then climbing up the pillars and shoot it with tranq darts or arrows, it can't break stone fast so ur safe. Pls don't use less than 10 pillars, I tried and I got pushed of the pillar and just died:( Sorry for my bad English. Hope this helped
How to tame:
(IMPORTANT: HAVE MAJOR SOOTHING BALM ON HAND OR THE TAMING PROCESS WILL BE SLOW.)
Instructions: Find a Spino, and then request your tamed creature who can deal the highest damage of all your tamed creatures. Also request your Mesopithecus if it is not with you already. Have your Meso riding your shoulder, and get on the creature you have requested. (Recommended to use Gigantopithecus or Therizinosaurus) Run at the Spino and attack it until it is at half health, at which point it will get scared and attempt to flee to preserve itself. Tell your mount to stop, set it to passive, and make it ignore whistles. Whistle your Meso to target the Spino so that it throws poop at it which slows the Spino down on hit. Shoot it with tranqs until it is knocked out cold. Once neutralized, give it fish meat, and major soothing balm. You should only need to give it a few helpings of bio-toxin. Hope it helps.
I had a Spino once. His name was J.J. I loved him. But like always, good things always come to an end. We were out looking for giant turtles for their keratin when J.J. fell over the edge of a cliff. I was on my pteradon so I flew over the edge and J.J. was following me back to bace when he was killed my a therizinosaurus... I just sat there on my pteradon watching him be torn apart, unable to help... So now, my bace is called Fort J.J. in honor of him. I will always remember my most loyal friend.
Once you find one, try leading it somewhere farther from the ocean or a large lake. It will just run once it has a high torpor (and there fast) into the ocean and if you nock it out it will drown and if you don’t it will prob get killed by Meg or something. I know from experience:
Multiplayer tip, this works well! How tame a low level, easy as taming a dodo almost.
Step 1: Have a pteranodon with good stamina.
Step 2: Scout the area for a spino (any level).
Step 3: Carry your tribe-mate to spino (keep your distance in the air)
Step 4: Have your friend tranq it.
Step 5: Use soothing balm/starve tame.
Easy tame, somehow.