1.6" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Cedrelospermum This type of fish

This type of fish

It was the first duck-billed dinosaur to have been found in North America

First Appearance: ~521 million years ago

including healed punctures and bite marks

Phytosaurs ultimately disappeared during the end-Triassic extinction event

1.6" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Cedrelospermum This type of fishLocation: Osgood Shale, Napoleon, Indiana Weight: 2. 1 Ounces Dimensions: 2. 5 Inches Tall, 1. 2 Inches Wide, 0. 9 Inches Thick (Matrix) Crinoid Dimensions are: 1. 6 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,