1.6" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Otodus Shark Cooling climates during the Pleistocene

Cooling climates during the Pleistocene epoch transformed habitats

near the beginning of the Paleozoic Era

with nests containing many eggs

the ammonite shell played vital roles in protection and flotation

1.6" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Otodus Shark Cooling climates during the PleistoceneLocation: 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,