1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Archosaur Mosasaurs lived during the late

Mosasaurs lived during the late Cretaceous period

Tracing their ancestry to the primitive straight-shelled nautiloids of the Devonian period

rich greens

and silicon

Weight: 12 Ounces (With Metal Stand)

1.8" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Archosaur Mosasaurs lived during the lateLocation: 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,