Best tactic I've come up with is to (double check before entering red woods) have your flyer following you and on Neutral/Attack your Target. When you're pounced off your mount, use a melee weapon in quick slot 1 (sword works perfectly) while your flyer backs you up in a few seconds, you'll almost certainly make it :P

I was flying high and it mounted me

Fly high and they cant dismount you. Otherwise avoid flying through redwood!

I would like to see this in ark mobile

You can't even run from these. Just accept your quick and painful death.