If you don't mind include a screenshot of your currently tamed Velonosaurs if you're interested in cross breeding with other tribes so that we can try to breed up some good ones. The goal here is to build something along the lines of 40 health, 40 stam, 40 damage. With the right levels you can get 10k health, 3k stamina, and over 500% melee, almost 600%. With all of these combined along with some good saddles, you should be able to do some boss fights really quickly and easily, at least that's the dream at the moment.