19.5" Mosasaur Prognathodon Fossil Jaw Section Teeth Cretaceous Dinosaur Era COA Green River Plant cave bears appear to have

cave bears appear to have relied heavily on caves as long-term or even permanent shelters

The fossils here primarily date from the Silurian Period (roughly 420–430 million years ago)

This rigid shell increased their likelihood of fossilization and is the primary reason trilobites are so commonly found in the fossil record

ended in a solid

19.5" Mosasaur Prognathodon Fossil Jaw Section Teeth Cretaceous Dinosaur Era COA Green River Plant cave bears appear to haveLocation: Oued Zem, Morocco Weight: 21 Pounds 3. 3 Ounces Dimensions: 22 Inches Long, 10 Inches Wide, 2. 4 Inches Thick (Matrix) Jaw Dimensions: 19. 5 Inches Long, 9 Inches Wide, 2 Inches Thick Comes with a Certificate of Authenticity. The item pictured is the one you will receive. 100 66 Million Years old, Upper Cretaceous, Maastrichtian Epoch. Some of the teeth have been placed back onto the jaw, and a small amount of composite material has been