I think they should be stronger as tames. Not their stats but what if their bite attack would decrease the targets speed so a Morreallatops couldn't just run away and their torpor damage is to low I'd say. Please make Thorny Dragon viable.
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.