I encountered 1 level 13 I had to quit so many times to keep my argen alive it's right near base 2 next to the redwoods I'm scared that my dinos other there are gonna die by it 1 up equals 1 more bit of faith that they will survive.
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.