Tyrannosaurus Rex

you were flying your helicopter when there is a sudden flash of light, you realise you are in a different landscape, welcome to the jurassic age, you continue to fly around when suddenly the helicopters GPWS starts shouting "Terrain, terrain, pull up! pull up!" this is strange as no terrain is high enough for the GPWS to detect it, you see a big object moving under the helicopter, that must have been detected, the creature swings its tail hitting the tail of the helicopter, snapping it off. Alarms blare as the helicopter loses altitude fast, you go unconscious as the helicopter crashes into the ground... how will you survive in the jurassic...