I have a family of four procoptodons and the speed of the first child is at 226.5% they're so fast even dismounting creatures (purlovias. microraptors, troodons) don't even have a chance of getting you off the procoptodon! i highly recommend taming these as they're the best terrastrial transporting tame, while breeding these make sure to have all the points on the speed and a little bit on the weight or health.
I find it useful if you pump nothing but weight and then harvest metal with it, just put yourself in the pouch and have a friend walk up to metal nodes, then you can harvest metal without even leaving the pouch!
Had one of these in a multi server, named him Steve Irwin. One of the best transport tames ingame period, got around 30 levels because of him. I’ve killed rexes and broncos with this thing. Knockback is amazing, and can easily run away from a fight if things go wrong. Sadly, game crashed in a cave and he passed away. Rest In Peace, Steve Irwin.