4.8" Brontothere Fossil Knee Bone Eocene Age Badlands S Dakota Titanothere COA Egg Shell The diet of Prognathodon was

The diet of Prognathodon was for a long time just speculation based upon the teeth and jaw construction

Crystal Quartz is relatively durable compared to many other minerals

Deinosuchus likely dominated its ecosystem

generally within 4

4.8" Brontothere Fossil Knee Bone Eocene Age Badlands S Dakota Titanothere COA Egg Shell The diet of Prognathodon wasLocation: White River Badlands, South Dakota Weight: 1 Pound 8. 6 Ounces Dimensions: 4. 8 Inches Long, 3. 3 Inches Wide, 2. 4 Inches Thick (Matrix) Eocene Age, 56 to 33. 9 million years Old. Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Brontothere The Thunder Beast of Badlands National Park Brontotheres were giant mammals that roamed what is now Badlands National Park between 56 and 33. 9 million years ago.