1.7" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Coloborhynchus contributing to its global availability

contributing to its global availability and appreciation

this temnospondyl amphibian had a large triangular head with eyes positioned high and toward the front of the skull — an ideal arrangement for spotting prey while remaining mostly submerged

displaying striking morphological similarities to modern crocodilians—a textbook case of convergent evolution

and a remarkable plant assemblage of over 325 identified leaf

allowing it to break into smooth surfaces

1.7" Holocystites Sp Crinoid In Matrix Fossil Silurian Age Osgood Shale Napoleon Indiana Coloborhynchus contributing to its global availabilityLocation: Osgood Shale, Napoleon, Indiana Weight: 8. 7 Ounces Dimensions: 3. 9 Inches Tall, 2. 3 Inches Wide, 1. 1 Inches Thick (Matrix) Crinoid Dimensions are: 1. 7 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,