Ammonite Fossil Skull by Skullis
The dark past of the Ammonites is revealed in these authentic fossils, carved with the deathly visage that always loomed over them through two mass extinctions before finally marking the fossil record with their own demise. Skullis specializes in amazingly detailed skull carvings out of myriad objects from crystals and gemstones to seashells and the ancient denizen of the deep shown here, which sold for a cool $2,190 USD. Well worth it though to have your own demonsquid.
Artist: Website (via: Nerdcore)