1" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Coral Early sulfur mining efforts in

Early sulfur mining efforts in Louisiana were complicated by loose sediments and quicksand above the deposits

bad habits and the like may be addressed

Halisaurus possessed pterygoid teeth along the roof of its mouth

thriving for nearly 140 million years

creating a protective posterior plate

1" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Coral Early sulfur mining efforts inLocation: 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,