Get to somewhere high, like a mountain, then the tranq the Yuty until it starts running, once it runs the carnos will mostly likely run away as well due to their leader going bye-bye. Then it will run in circles attacking everything except for you. Then tranq it some more, but make sure to hit it. This is at least what happened when i tamed one solo.
This Smaller T. rex furry is able to Spam roars which either buff its allies attack power by 25 percent oooor or scares enemy/wild Dino's away the bigger the Dino the more scare roars it will take to make it feared making a Dino feared will make it walk the opposite way of you and unable to do anything else for round 20 or 30 seconds They also look like a really good pillow besides dodos pretty much a dodo and a Rex fucked and this epic shit came out