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endemic to North America
These shells were divided into chambers separated by walls known as septa
which has led to several hypotheses regarding its function
a cryptocrystalline form of silica
Unlike their modern desert-adapted relatives
0.7" Running Rhino Hyracodon Nebrascensis Fossil Jaw Section Tooth SD Badlands COA Centrosaurus endemic to North AmericaLocation: South Dakota, White River Formation, Pennington County Weight: 3. 6 Ounces Dimensions: 2. 2 Inches Long, 2. 1 Inches Wide, 0. 9 Inches Thick Comes with a Certificate of Authenticity. The item pictured is the one you will receive. 30 35 Million Years Old Oligocene Period The discovery of Rhinoceros fossils in the Badlands of the American West was very exciting, as most people never suspected that such primitive rhinoceros forms could have
