If you have an argentavis, grab the procoptodon on the claw of the bird and let a friend fire him some tranq arrow / dart. If you don't have an argentavis or a quetzal, then, trap him with bolas and fire him. Bring some wood / stone fence foundation and some wall to build around him to be sure that he's not attacked by any wild creature and be sure to have a lot narco / rare mushrooms. When tamed, a procoptodon is fast and he's a great Dino to tame other since you can jump in his front pocket and fire weapons. Also great in scorched earth when you're trapped in a sandstorm.
Get rare mushrooms from the swamp, not the the tall trees but the ones that have multiple roots going into the ground. Use a metal pick axe too! You'll know the difference between trees when you see them
With the new flyer nerf I've found the procoptodon to be the safest and fastest ways around the map if movement speed is lvld.. I've got movement speed at 174 and can smoke any wild dinos including wyverns.. Keep an eye on fall damage while jumping
These things are very easy to knock out. Just bola it and then use tranq darts to knock it out, tranq arrows work too. WARNING! They eat Rare mushrooms and/or Plant Species X seeds so gather up a bunch and you'll be set.