The dimorphodon is hard to tame first starting out with any kind of bow because there hit box is messed up.. your best chance is to sneek up on them when they land and get as many up close shots as possible. . Best to aim for the body once down have your kibble/prime/meat and narcotic on hand and feed away.
If I could have 40 of one type of creature in ark, it would be this one. If you have at least 4 of them, you can look through a spyglass, press attack target, and watch your heat-seeking missiles wipe the target off the face of the earth in seconds. They are easy to tame too, as long as they are alone. If you hit one then all of them will immediately attack, swooping in to deal way too much damage and then swooping out of range. It is smart to bola them but I just use crossbow/tranq arrow. They only need one tranq arrow and their out. They tame quickly, but their torpor drains fast so you’ll need one biotoxin/two narcotics. It is easily worth it though. In groups they can take down much larger prey, but on their own they can easily die so make a pack before going on a hunt. Also don’t send them to attack brontos, Ankys, or stegos unless they have very large numbers! Rip Dimorphie, Morpha, Green Rocket and Blue Streak. All in all they are AMAZING creatures.
These things are OP! If you tame a high level one they make an amazing shoulder pet (surpassed only by ferox I would say). Mine does like 250 dmg a bite and it works well if you have an aviary of them. If this helps, please up!!