1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Raptor Some researchers suggest the crest

Some researchers suggest the crest may have housed salt glands

with origins dating back to the age of dinosaurs

Location: Willwood Formation

The cephalon forms the head region and contains compound eyes

epidote contains iron that deepens its green coloration

1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Raptor Some researchers suggest the crestLocation: Osgood Shale, Napoleon, Indiana Weight: 7. 5 Ounces Dimensions: 5. 2 Inches Tall, 2. 2 Inches Wide, 1. 1 Inches Thick (Matrix) Crinoid Dimensions are: 1. 8 Inches Tall, 0. 8 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,