After the plates were added I moved on to working on the tail spikes. The locations were marked on the tail and then drilled. The spikes were then glued in place. When all the parts of the stegosaurus had been assembled I covered the entire sculpture with a thin layer of Apoxie Sculpt clay.
While the clay was still soft I embedded various sizes of baked Super Sculpey into it to give the dinosaur hide a pebbly armored look.
After the clay had cured overnight I gave the sculpture a couple light coats of white lacquer primer.