1.2" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Hastalis They were air-breathing predators from

They were air-breathing predators from the Ichthyosauria group

Apsopelix Sp

Fossil Metasequoia provides a rare glimpse into prehistoric forests

Fossils like Pinnixa galliheri provide valuable insights into the evolution

1.2" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Hastalis They were air-breathing predators fromLocation: Osgood Shale, Napoleon, Indiana Weight: 3. 7 Ounces Dimensions: 2. 3 Inches Tall, 2 Inches Wide, 0. 9 Inches Thick (Matrix) Crinoid Dimensions are: 1. 2 Inches Tall, 0. 7 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,