A 9x13x4 sheet is topped with a 3-D dino which consists of one layer 9" round. Cut it in 1/2, stack those and place cut edge down on the sheet. All icing is buttercream. The neck is made up of cake scraps and marshmellows. The top of the jaw is a tongue depressor (the only non-edible on the cake),. Legs and tail piped icing. I have made at least 1/2 dozen of these, each slightly different.