1" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Wooly Rhinoceross Tooth aided by a finned tail

aided by a finned tail for propulsion and small webbed feet for steering

These minerals often coexist

South Dakota - Hell Creek Formation

Certain types of calcite exhibit blue or red fluorescence under UV light

Native Sulfur has held historical importance in Louisiana because of its unique geological formation and economic value

1" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Wooly Rhinoceross Tooth aided by a finned tailLocation: Osgood Shale, Napoleon, Indiana Weight: 1 Pound 3. 4 Ounces Dimensions: 3. 4 Inches Tall, 3 Inches Wide, 1. 8 Inches Thick (Matrix) Crinoid Dimensions are: 1 Inch Tall, 0. 7 Inches Wide The Item Pictured is the one you will receive. Holocystites Sp Silurian in age (420 million years old) Holocystites is an extinct genus of echinoderms belonging to the class Cystoidea and sub phylum Blastozoa. These organisms thrived during the Paleozoic Era,