If one is encountered near water, you can simply lure it out to sea with a flyer and it will swiftly drown. Given the water is deep enough. If encountered inland not near water. Pray to the overseers you have something fast enough to out run it. Then promptly die because they're as fast as a mad Hispanic mother with a shoe. Not as deadly as one though.
I once was in the redwoods and saw "you have entered a dangerous area!" But, instead of a dino, it was a green troll?!? i saw a rex and thought it was a giga (im on mobile btw) and got outta there on my pteranodon as fast as i could. soon i figured out giga's ONLY SPAWN IN THE ARCTIC! i had really observed a rex. I am still wondering why it was a green troll and not a dino, so please tell me. So, when noobs see rexes around and think its a giga, no its not. #savethenoobs #savethebeachbobs