They are EASY tames! I saw one early in the game and placed myself and my ptera on a cliff and shot it from there with my BOW and tranq arrows. It fell asleep. I HAD NEVER TAMED ONE. OF THESE BEFORE but i asked chat gpt for help and i got what i wanted. I came back to it later (it was still asleep) with salmon. 30 seconds later : Name your sarco!