31MM Detailed Fossil Tetragramma Marticense Sea Urchin Echinoid Cretaceous Brontothere Brontotheres were massive mammals that

Brontotheres were massive mammals that once roamed the region now known as Badlands National Park

providing protection and support while enabling exceptional fossil preservation

making it both culturally and scientifically significant

Esteemed for its exceptional clarity and luminous beauty

Chrome diopside

31MM Detailed Fossil Tetragramma Marticense Sea Urchin Echinoid Cretaceous Brontothere Brontotheres were massive mammals thatLocation: Morocco Weight: 0. 5 Ounces Dimensions: 31MM Late Cretaceous 95 89 Million Years Old The item pictured is the one you will receive. Tetragramma marticense sea urchins are a group of marine invertebrates found in nearly every ocean habitatfrom polar waters to tropical seas, and from shallow intertidal zones to depths exceeding 5,000 meters. Today, about 800 living species exist, but their lineage stretches back roughly 450 million years to