okay so if you want to kill that thing on your own, and you have at least lvl 13 then you might have a chance. i have two ways, one with and one without a pteranodon (or any other flying thing). without ptera: build two spike walls in a V shape. make sure there is a small gap between those so you can run through. make sure the therizino is not too far away and hit it with a bow. it should chase you. now just run through the little gap, the therizino should get cought up and “fight” the spike walls (he'll die after a while). with a ptera you can just attack him from the air and lure him to the spikes. stay in the air or fly further away, he'll die after a while. i've killed about 15 therizinos now with that and i'm still using it with lvl 54 ^^” they're just too scary

Found one wandering around my base. I immediately moved after that therinzo killed my fav parasaur on a resource run. Rip jimmy.

Once you have a gun and flier, these become pretty easy to kill. Find a cliff above them or a tall rock and land with flier, then just shoot them in the head. I've killed many doing this. You have to be careful that you are up high enough so that you can't be hit, and be sure when dismounting you don't walk off the edge. If your flier isn't on follow it could result in your death

I got on top of a rock and the tickle chickens head points through took a good 40 stone arrows to kill a lvl 1

If you see one up close you're in in trouble, so I recommend staying a far distance from it.

This tank will ruin you early game. It was basically my arch nemesis until I got a Rex.

I had a pack of 5 raptors he killed them all.

They are just almost as strong as rexes, faster in the wild and just like its nemesis, capable of aggroing on almost anything tamed.

The one and only thing that makes this creature so deadly is how weak it looks at first; If you can't fight rexes, you probably can't fight them either. Make your choices wisely.

Watch out this thing is just as powerful as a Rex!!!

Note to self never ever mess with it killed all my animals

Saw one across a river. I knew about these guys and ran for my life!

I found their Agro range is fairly small as long as you leave it alone you should be good there kinda slow compared to other games like raptors and carnos so it’s easy to outrun the pillar trap with a large bear trap works for taming but they damage stone so work fast

Couple of shots from a pump action shotgun and it's deeeaaaad. 4 at the most tho.

My luv 120 Caron two Lv 30 raptors and my stego died to a lv 40 one of these things they can be easily killed by metal spikes though just shoot it run behind the spikes and it will die

Found one glitched into a tree. Easy knock out. But the narcotics...... So many narcotics......... GET KIBBLE, MAKE A FARM. DO ANYTHING OTHER THAN BERRIES!!!!!

If u see it, run.

I dont care if u have 16 gigias behind you, run.

These things are extremely dangerous if you’re low level it can slice through a Trile,raptor,silo,ptera,and para in 2 seconds I learned the hard way

Very annoying, avoid at all costs. Killed my full pack of raptors.

I had my first trike ( I was new) and a level three two shot it. WATCH OUT FOR THERIZINOSAURUS' ! P.S. my trike was level 25!

They are powerful and scarey be careful do not agro