If you use the bear trap strategy which is if you lead it into a Dino gateway that is shaped in a triangle and with a bear trap in the middle (Large Beartrap) and when it is stuck you must put a dinogate behind it to trap it and then knock out. (hope this helped and "If" I win could it be an Xbox voucher, thanks.)

Bring a friend on a Gallimimus, don't be too afraid, gallies are fast, then have your partner (s) on the back (and/or front) and shoot the thing like it killed your family

If you happen to encounter this creature with a tribe member, get your trusty bola. Bola your tribe member and run ?

I can tell you from experience that in fleeing this dino you only need 1 tranq. Yep i shot that thing into my tribemates knee and was able to escape at a brisk pace as the rex ate him

Create a 3x3 mobile taming pen 3 walls high on a raft with a Dino gateway on one side and ramps on the other. Use a flyer to lead it up the ramp into the pen then move it to a safe area to tame. I got 2 150s without a single issue.