Well this is the first Poser render of the creature.  The model has a rigged jaw rather than a morph to open the mouth, as I thought it would provide more realistic results.  In addition the jaw can move slighty from side-to-side to provide users with a means to show it chewing if they want to.  It seems to work fairly well.

In other ways this first effort at rigging was very unsuccessful with poor shoulder and hip movement and I will be returning to Blender to rework the grouping.  I have plenty of experience rigging Poser vehicles but this is my first Poser animal, and I did not know the best way to set up the groups to make rigging work well.  Fortunately changing the grouping is easy enough in Blender and it shouldn't take me more than twenty minutes or so.  Rigging the figure again in Poser will of course take much longer even though you only have to rig the centre parts and the limbs on one side.

So I'm learning quite a lot on this project.