Things you will need:

Tranq arrows or darts. ( I needed only 12 )

Longneck rifle or crossbow. { I used crossbow}

The trap method:

Take some stone pillars and place in an area a spino will fit. Then tranq it up and feed it (raw prime fish meat works best )

Your spino is tamed

The old school method:

Get up in an area higher than the spino and knock it out. You will need to chase after it tho. Then feed it.

Your spino is tamed!

- Dinoshark.