1. Get tranq arrows and a crossbow
2. Find an anky of your desire
3. Shoot it in the head while walking backwards (they're slow so you can just walk while shooting)
4. When it runs away chase after it and shoot it
5. It'll be knocked out.
6. Feed it recommend food and any narcos if needed.
7. Congratulations!

They get about 3x more metal than you! And depending on the level they can easily kill Raptors and other small predators.

They're found almost everywhere
Beaches, highlands, chalk hills, green forest, I've even see some near desert.

I shot a lv 1 5 times with narcotic arrow in a crossbow like So Dododex sees this

Trying tame one ankylo is a good idea but not a level 350 or 200 just knock out a 20 level and when yiu level up a bit you can do another one a bit higher than the other one

These are not normally in safe areas so before you try to knock it out check your surroundings

I tamed a lvl 7 and it did not take 1 hour, his name is anky