Here's how to tame a triceratops:

1. Definitely don't bola it.

2. I recommend building a trap using stone structures. Like a 4 by 6 foundation, and doorframes for the walls, make it 3 doorframes high. And build some ramps so you can lead the trike into the trap.

3. Shoot it with a tranquilizing ammo like tranq arrows or certain darts.

4. After it's knocked out, feed it berries, veggies, or preferred kibbles.

Hope this helped! Bye!

-Pablo27