Take note that the ones on Fjordur are technically cave creatures and aren't meant to be tamed. Because of this their stats tend to bug out often and they get a inventory bug where you can't move the items in their bigger form until they revert back to their small form. (So make sure to turn off harvesting) You can however find them spawn up to 300, which when tamed will go to 450, meaning you can get some very powerful ones without having to breed any generations, if you're feeling rather lazy.

You can use it to steal magmasaur eggs and a high level one 90 and up can be better then a blood stalker if you need to get a large amount for tameing a basilisk. Watch out as it much faster then useing a blood stalker but much riskier I just steal 4 useing a level 140 and made it out just befor it transformed back p.s I stoal one from each nest ( some nests are really easy to steal from while the bigger ones are a lot harder to steal from)

Track the mission into the Fro-zone,go their and kill all the bears. There should be a lot of Ferox, when you tame bring extra ele just in case. Make sure when you feed element grapple to the roof of the cave and wait for it to go back to normal. Keep on doing this process and you should have it tamed.

i just tamed a level 300 on fjordur. no idea what the max level is for these guys but thats the highest i got. it ended up being a lvl450 in the end. i recomend going to lost island and getting a sinomacrops. makes it way easier. grapples work too but i prefer to fly easier. i have the tek helmet and it helped a lot. you can see the agro and where they are. when you track them, the tracking bar dissapears after you use element.

hope this helps a little, just what i experienced in my taming.

-ThatKid07701

When you walk around the snow tipped mountains, and glacier covered trees, you hear bedore you... Brrr brrr? You run like all hell but you were too late, the cracked jerboa had already gotten high on element and was chasing you throu the icy bushes and when it caught you it had wrapped its icy, cold, jaws od death around your skull but then... It changed back to its dossile form and skittered away to the mountains. Be safe.

Either find the Ferox Cave at 83.9,47.6 be careful as it is crawling with Polar Bears or go where there is always a snow storm and bring a Snow Owl,Bloodstalker, or Parasaur (Parasaur not recommended),find a Ferox using predator vision or spider vision then feed it element then grapple to a mountain and wait it out rinse and repeat, or for the Ferox cave build and enclosure large enough for the transformed version of the Ferox so it stays trapped and feed it element get it stuck let it go back to normal form and the redo it.

What I do is grab a grappling hook and crossbow and go in with my tankiest Dino feed it element then grapple on to the top of the cave then let it attack the Dino but make sure it’s on passive because when your up there they will run away so keep it aggroed until it’s small then wash rinse repeat