4.6" Brontothere Fossil Knee Bone Eocene Age Badlands S Dakota Titanothere COA Plesiosaur representing the ancient rugose coral

representing the ancient rugose coral Hexagonaria percarinata

Cranefly Insect

These sulfur deposits form through the bacterial reduction of anhydrite (calcium sulfate) found in the caprock

Zarafasaura oceanis is a genus of elasmosaurid plesiosaur that lived during the Late Cretaceous period

Crocodiles are reptiles of the order Crocodylia that have existed for millions of years

4.6" Brontothere Fossil Knee Bone Eocene Age Badlands S Dakota Titanothere COA Plesiosaur representing the ancient rugose coralLocation: White River Badlands, South Dakota Weight: 1 Pound 0. 8 Ounces Dimensions: 4. 6 Inches Long, 3. 6 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 is an ancient mammal that roamed the area of Badlands National Park about 56 33. 9 million years ago. Badlands brontotheres are also known as Megacerops