Use a Quetzal to pick it up. Make sure you have two people on 2 different birds for a better chance at grabbing it. Its also good in case the first Quetz loses its rider and is being attacked. Drop into a room that it can't damage and tame away. You could also have someone carried by a Pteranodon but it isn't safe because it could hit the person being carried which will then fall to his/her death. Happy taming!

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