XL 3.7" Spinosaurus Fossil Tooth 100 Million Years Old Cretaceous Dinosaur COA Drotops Their skeletons were hollow and

Their skeletons were hollow and lightweight

showcasing a stage when these mammals were fully aquatic yet still retained features of their terrestrial ancestors

They first appeared around 521 million years ago in the Early Cambrian period and remained widespread throughout the Paleozoic Era before becoming extinct well before the emergence of dinosaurs

This aluminum nesosilicate mineral is characterized by its distinctive crystal structure and its formation under specific metamorphic conditions

XL 3.7" Spinosaurus Fossil Tooth 100 Million Years Old Cretaceous Dinosaur COA Drotops Their skeletons were hollow andLocation: Oued Zem, Morocco Weight: 1. 4 Ounces Dimensions: 3. 7 Inches Long, 1. 2 Inches Wide Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Name: Spinosaurus (Spine lizard). Named By: Ernst Stromer 1915. Diet: Piscivore Carnivore. Size: Estimated between 12. 6 and 18 meters long. Known locations: North Africa, particularly Egypt Bahariya Formation, and Morocco Kem Kem Beds. Time period: Albian to Cenomanian