An all around amazing tame with a variety of uses. Hunt trilobites for oil. Carry armadillos for farming stone and clearing paths. Delicately plucking dinos off an elevator. Exploring. Farming gems from rats. The list goes on and on, just be creative. Its almost OP but it is hard to tame. Not only do you need a catapult but you also need to score only body shots and even then pray that its strong enough to survive the hits. It's tanky, uses surprisingly very little stamina, has a good attack even without the grab, well worth the trouble.
Alright not exactly my tip, but heard this from the YouTuber pterafier. He said that using a Crab with a Turtle with C4 strapped on it is a good seige device. Put C4 on Turtle, then use Crab to throw the Turtle at a base. Detonate the C4, blowing up the base where the Turtle is at. I'd recommend watching Pterafier, he has a lot of tips on his channel.
If you're carrying a tamed Doedicurus in your claw the Doedic will automatically start harvesting any stones you hover him over. Just start pumping points into your Doedic's weight because it will stop at about half of its own carry weight. I've yet to discover another tame it will work with though...
Be careful when carrying a Dino that has a tribe mate mounted on it. I was walking up a hill carrying my anky with a tribe mate on it and they went under the map and died. RIP ANKY AND SHINEHORN. Tribemate was eh anyway.