86MM Perisphinctes Ammonite Fossil Nautilus Madagascar Jurassic Age COA Lygodium Kaulfussii the name TRILOBITE meaning "three-lobed"):

the name TRILOBITE meaning "three-lobed"): a central axial lobe

mineralized outer shell—the first known skeletal structure in animals

transparent wings

People have used calcite to make cement and mortar

Spinosaurus occupied a specialized ecological niche unlike any other large theropod

86MM Perisphinctes Ammonite Fossil Nautilus Madagascar Jurassic Age COA Lygodium Kaulfussii the name TRILOBITE meaning "three-lobed"):Location: Near Sakaraha, Tulear Province, Madagascar Weight: 6. 5 Ounces Dimensions: 86MM 3. 4 inches long, 2. 9 inches wide, 1 inch thick Comes with a Certificate of Authenticity. The items pictured are the ones you will receive. Perisphinctes Ammonite Perisphinctes ammonite exemplifies the taxonomic diversity of Jurassic cephalopods. As members of the subclass Ammonoidea, these organisms occupied critical ecological niches in marine food webs from