When taming to make it easier stand against a cliff or a good sized rock. I tamed one for my brother and it was a piece of cake with that technique. Also if you find that the place you find the diplodocus isn’t safe just get near it and lead it away. They won’t hurt you they just like to swat you around like they are playing a game of soccer.
Just run under the legs make sure you have mejos (having a harvesting animal is a good way to get them) and then you have got a diplodocus! They are great harvesters they have great weight so you can carry a lot on them but be aware they can attract carnivores the saddle is expensive but wort for a tribe holds 10 people but is expensive
For anyone that wants to passive tame it here is an area under it where he will play the push animation but it wont actually push you this leaves you only with the annoying rawring to deal with for more than 10 mins
These are naturally peace-loving creatures, preferring to spend the days grazing about the island’s many hills and valleys. They have an inherently playful nature, leaving them undeterred by any predators until they become severely injured, at which point they get scared and will attempt to flee. Because of this, tamers have taken advantage of this overtly trusting nature and have tamed it like so. They have also tried to jump on it’s back for taming, usually just to find themselves tumbling back down to the ground again. The Diplodocus is so trusting that one can even knock one unconscious for an easier tame, at the cost of tranquilizer arrows, and a fair bit of them. Also, be careful during the taming process as they tend to nuzzle you in an act of affection during so, and be careful if traveling near a Diplodocus who is unaware of your presence with a berry-gathering animal, because it will gladly take an accidental hit during gathering as a play-invitation.