Despite the wiki saying Ptrandon cannot fit through a doorframe, they actually can fit through a open door while flying. Don’t use open doorframes to trap one unless you want a big chance of your Ptrandon escaping.
Source: I got my Ptrandon stuck in my house multiple times because he followed me through the doorframe.
If you play on mobile and want to do the roll then go to settings left or right multi tap and chose alt attack 2 !!!
NOW FOR THE MAIN PART--- THESE THINGS CAN KILL GIGAS the normal roll does decent damage but if you roll and attack a dino while watching the dino through spyglass you can deal tons of damage (this works in mobile idk about other platforms) i killed tons of rexes,brontos,allos..etc. using this trick
How to do barrel roll on mobile: Go to settings and then go to controls then either go to left multi tap or right multi tap. Then select Reload/Alt attack2. When you are done, go and press on your screen twice on either left or ritght side. And you pteranodon can now do a barrel roll! Disclaimer:wastes stamina alot so be careful. Like so newbies see this!
Upgrade their stamina and weight a LOT. This flyer is worth it, upgrade his health and melee dmg enough and it can take out raptors on its own (my lvl24 pteranodon killed a lvl20 raptor and succeeded with half of his HP). These lovely birds are easily encumbered by the weight you're carrying so it's preferent if you use lighter armor and leave a few items in the storage so that it's not slow.