I prefer Argy’s over Ptera’s any day. They have more stamina, health, weight, and more melee damage. Even know that Argy’s lack in speed compared to the Pteranodon’s speed the Argy is better than the pteranodon 100%.
Use left trigger to pick up animals. Right trigger to attack, witch can also be used on a picked up enemy's. pull left stick back to decelerate and forward on the stick to accelerate. The jump button is used to land and fly.