If starting out then these dinosaurs seem to be one of the most easiest way's to get raw meat and hide, given they are a reasonable level (I'd stick to about 20 and below for starting out, anything higher could be really dangerous) along side 'Dodo's', 'Coel' and 'Parasaur's' (which are not aggressive) That being said, if tamed, their eggs which are made into kibble can provide most useful in taming more effective 'resource' dinosaurs such as the; Doedicurus (for stone) and the Ankylo (for Flint, Metal, Crystal and Obsidian). Although don't underestimate these small Dinosaurs, they can/will be very aggressive when nearby. What I found best to dealing with them at a lower level was the spear, attacking whilst 'back-peddling' aslong as you keep getting the hit in. Then harvest with a pick for more raw meat or the hatchet for more hide. Whatever your preference.
1.kill some dilos, dodos or compy so that you can collect meat.
2.Craft a slingshot, wooden club or you can beat it with fist (If your trying to knock it with fists choose a low level one; if with slingshot collect a amount of stones first also remember wooden club breaks fast so craft and keep atleast 3 more wooden club for backup)
3.Find a dilo
4.after it's unconscious open its inventory by going near to it and tap and hold. After you need to put some meat which we collected at first
5. Wait.....if your dilo eats all the meat but still not tamed put some more meat to its inventory and wait......