I can’t stress how good these are. If you pump movement for a while they can be great for use in a taming pin they can jump over at least 2 or 3 high walls if in gather mode and run the sprint mode with lvs in movement it can outrun most animals on the island. On top of that later in the game gather berries with it and turn the into seeds for a lighter non-sloiling food source. One seed weights .01and gives 1 food.
The Iguanadon is a very great all purpose mount, however note its egg size, though the iguanadon takes simple kibble to tame, their eggs can in fact be used to make regular kibble, if gathering a bunch of scorpions seems too challenging, the Iguanadon is an amazing alternative for the early game egg farm, they can be transported easier as well!