Never underestimate these bastards, I was trying to tame one of them and THEIR NEEDLES HAVE RANGE! I was on the other side of the lake in the desert biome and I was getting aim boted by thier needles. MAKE SURE TO HAVE SOME MED BREWS IF U TRY TO TAME ONE!
The developers made a very correct decision for this beast and made a not very large radius of its aggression. If he would have a higher target radius (like a raptor, for example), he will start shooting for the first step, and it will be very annoying for all players.
This dude will do tons of damage so first of all, tame high level triceratops or stegosaurus to soak up its damage, while it is distracted trying to kill your dinos, use your weapon of choice (if your taming make sure to use tranquilizer darts or arrows) and try to deal as mu vc damage as possible, to escape these guys, a pteranodon will do if you get far enough away. If you tame these guys they will be a great defending Dino and offense Dino, since the saddle is unlocked so early, it is an AMAZING starting mount. I would give it a 90/100, if it could destroy would structures a solid 95/100
NEVER UNDERESTIMATE THESE GUYS, they are able of dispatching your tamed velonasaur in seconds because unlike ridden velonasaurs. They can fire at a longer and more rapid rate. If your velonasaur is un-mounted, then it may very well be able to kill the wild velonasaur!