The best way to trap any Dino in the game is to build a trap. You will then want to lure it in. If you put a ladder on the back and a cat walk on top you will be able to shoot down on to it. Once that is done climb down into your put on kib and narcos build a chair and sit.once you have done tamed do not destroy your creation later in the game you will want more either for yourself or to trade/sell.
I just knocked one out. I was very afraid of these monsters before but its actually a quite easy tame! I recommend this snappy thing for beginners underwater mounts. Good luck taming it. [Up so the noobs see ;D]
DO NOT listen to the person who wrote the following comment: “DO NOT tame in the lower south cave. It will get stuck on the way out and be trapped there forever.”. If it can’t (which will most likely be the case if tamed down there, because (in my experience) Sarcos struggle just entering the cave with how wide they are. But don’t listen to that guy. Just summon it out in the “Request Creature” tab and wait for it to teleport (I have summoned creatures out of the cave when they get stuck and they teleport just fine). Share this with anyone you know who struggles with that.
For beginners, these crocs will make your life on ARK so much easier and you will NOT regret you obtained one. You can ride them at lvl 35. They are super fast swimmers and even travel quickly on land too. To tame quickly:
1 ) Shoot with tranq arrows until unconscious
2 ) Fill it's inventory with Fish Meat or Prime Meat
3 ) Protect your croc from nearby enemies
4 ) Enjoy your new dino !!!!!!!!!!!!
Pro Tip: These guys are great for obtaining tons of meat on land, but bring lots of meat/fish in your crocs inventory before travelling into the water, the croc will eat and drain it's food supply very quickly while underwater. Fish gathering I DO NOT recommend with this dino.