The thorny dragon (thorny) is the beaver of scorched earth. There's only one problem. It has little hp and dies very quickly. I recomend using a couple wolves or sabertooth to act as a bodyguard while collecting thatch and wood.
Gathers wood fast and carries it at 1/5 weight stone is 1/2. Weak on the sides so if you really like this dino to patrol keep another dino with it to aid. Excellent at killing mantis to gathering organic polymer and chitin.
I have 12 on platforms 4 pillars high scattered around my base. I have an issuse with dino spawns in the base. So they act as a long range needle launcher. Weigh down with sand because its weight isnt affected by the dragons buff. Set all to long range aggressive and u have a protected base. Add a few plant X for added assurance. I no longer have spawn problems. Found a ready to tame terror bird today too pretty neat.
No longer carries wood at 1/5 weight, now carries at 1/2 but can now be carried by argentavis and can farm wood similar to farming metal with an argentavis and anky, upgrade melee damage to get the most wood possible.