The Therizinosaurus, or as I call them Herbivorus Rex, is a very useful dino when tamed. With the left click, you gather mostly wood/some thatch, mostly meat/ some hide, with the right click you tickle to gather only fiber, and equal amounts of hide and meat, with the C key you can gather only berries, and only hide/other secondary resources. The therizino is like a jack of all trades, as it is very good at gathering wood, fiber, berries, hide, and meat. And it's decent at getting thatch too.
To get wood, use normal attack which is slashing with claws. To get berries, use bite attack. To use bite attack on mobile, change multi tap to alt attack 2 and tap with 2 fingers when riding the Therizinosaur. To get fiber, use the tickle with claws move. To use the tickle with claws move on mobile, jump when riding the Therizinosaur.