1.4" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Rebbachisaurus This remarkable specimen comes from

This remarkable specimen comes from a pivotal period immediately following the Cretaceous–Paleogene mass extinction

Their behavior resembled that of modern elephants

dating back nearly 300 million years

Vertebrae Dimensions: 43MM

which coevolved with the insects that fed on and pollinated them

1.4" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Rebbachisaurus This remarkable specimen comes fromLocation: Osgood Shale, Napoleon, Indiana Weight: 7. 1 Ounces Dimensions: 3. 4 Inches Tall, 2. 6 Inches Wide, 1. 1 Inches Thick (Matrix) Crinoid Dimensions are: 1. 4 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,