I tamed a highlvl one one easy with some crops fron the fjördur. After exploring the areas around me i found a 55 Alpha raptor. It took a while but i easily killed it. Of course i never would try Alpha rex.
When I was starting the game a saw a iguanadon and wanted to kill it because I needed meat so I ran up to it and poked it with my spear and died, I respawned and saw a rock so I hoped on it and I didn't slip off so I ran up to the iguanadon and poked it again and bolted to the rock and hoped on and started poking, after a while the iguanadon started to run so I hoped of the rock and killed it, the next day I found out that iguanadons have infinite stamina and was so mad at myself for not taming it.
I was making a trip to the volcano on my pteranodon and while I was in the air a micro raptor knocked me off my pteranodon and I fell on the beach surrounding the redwoods I died and I came back to see my pteranodon dead I then died again attempting to get my stuff back I then brought my iguanadon and I died after a micro raptor knocked me off again I came back and to my surprise my iguanadon was fine and standing heroically over my dead corpse I then get my stuff and start heading back when the same thing happened in the swamp but there were 3 dimorphs and when I came back they were all dead while my iguanadon had a mere scratch and he fended off a total of 4 dimorphs 5 titanaboas and 2 microraptors at least
I was with my iguanodon level 25 he had speed 114% and I had a saddle on it and I was riding it I was just getting rocks for my walls and I was only level 30 and I saw a spino it was not attacking me so I thought maybe when u are on a Dino some dinos not attack u but when I went closer it showed me u have entered a dangerous area and the spino started attacking me but my iguanodon out ran it very easily I was shocked but there was two dilos they attacked my iguanodon and I was trying escaping but they poisoned it and it almost died but I quickly unmounted and killed the dilos with my crossbow and my iguanodon almost got killed so they are very fast but very weak u can only use them for exploring if u are not a high level they can also out run raptors