1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Archosaur and silicon

and silicon

where one of the most significant dinosaur nesting sites ever found was uncovered in 1978

Feather and Leaves

Mosasaurs lived during the late Cretaceous period

1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Archosaur and siliconLocation: 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,